Gordon W. Gribble - Papers Presented at Meetings

 

(speaker underlined)

 

1. "Some Novel Transformations of 3-Vinylindoles," L.J. Dolby and G.W. Gribble, Northwest Regional American Chemical Society Meeting, Richland, Washington, June 15-16, 1967.

2. "Slow Nitrogen Inversion in Bridged Heterocyclics," G.W. Gribble, National Academy of Sciences Autumn Meeting, Hanover, New Hampshire, October 13-15, 1969.

3. "Solvolysis of the Phenyl-Substituted Benzhydryl System," M.S. Smith and G.W. Gribble, 10th College Research Symposium, Northeastern Section, American Chemical Society, Boston, Massachusetts, May 14, 1970.

4. "Slow Nitrogen Inversion in Bridged Heterocycles," N. R. Easton and G. W. Gribble, 10th College Research Symposium, Northeastern Section, American Chemical Society, Boston, Massachusetts, May 14, 1970.

5. "A Total Synthesis and the Stereochemistry of dl-Elaeocarpidine," G.W. Gribble, 7th International Symposium on the Chemistry of Natural Products, Riga, Latvia, USSR, June 21-27, 1970.

6. "Studies in Indole Alkaloid Synthesis," G.W. Gribble, 2nd Workshop on Organic Synthesis in Natural Products Chemistry, July 22-24, 1971, Minary Conference Center, Squam Lake, NH (invited speaker).

7. "Selective Amide and Nitrile Hydrolysis in the Absence of Bulk Water," J.T. Eaton and G.W. Gribble, 4th Northeast Regional American Chemical Society Meeting, Hartford, Connecticut, October 15-18, 1972.

8. "A New Reduction of Indoles and Reductive-Alkylation of Amines," G.W. Gribble, 167th American Chemical Society Meeting, Los Angeles, California, April 1-5, 1974.

9. "Organic Chemicals and Cancer," G.W. Gribble, New Hampshire Science Teachers Association Conference, Concord, New Hampshire, May 10, 1974 (invited speaker).

10. "A Facile Reduction of Indoles by Diborane in Glacial Acetic Acid," J.T. Eaton and G.W. Gribble, 6th Northeast Regional American Chemical Society Meeting, Burlington, Vermont, August 18-21, 1974.

11. "Substitution and Elimination Reactions of Bicyclo[3.2.1]octyl-3 Tosylate," S.N.Y. Fanso-Free and G.W. Gribble, 6th Northeast Regional American Chemical Society Meeting, Burlington, Vermont, August 18-21, 1974.

12. "Carbon-13 NMR of Indolo[2,3-a]quinolizidine Alkaloids," R.B. Nelson and G.W. Gribble, 6th Northeast Regional American Chemical Society Meeting, Burlington, Vermont, August 18-21, 1974.

13. "Reduction with Sodium Borohydride in Carboxylic Acid Media," G.W. Gribble, P.W. Heald, D.C. Ferguson, R.M. Leese, and J.E. O'Neil, The First Chemical Congress of the North Ameri can Continent, Mexico City, November 30-December 5, 1975.

14. "Oxidative Deamination of Aromatic 1,4-Imines. A New Synthesis of Polynuclear Aromatic Hydrocarbons," G.W. Gribble, R.W. Allen, P.S. Anderson, M.E. Christy, and C.D. Colton, 172nd American Chemical Society Meeting, San Francisco, California, August 29-September 3, 1976.

15. "Natural-Abundance Nitrogen-15 NMR Spectroscopy of Rauwolfia Alkaloids and Model Com pounds," S.N.Y. Fanso-Free, R.L. Lichter, R.B. Nelson, and G.W. Gribble, 173rd American Chemical Society Meeting, New Orleans, Louisiana, March 20-25, 1977.

16. "Special Topics in Undergraduate Organic Chemistry," G.W. Gribble, Chemical Congress, Honolulu, Hawaii, April 1-6, 1979.

17. "Reactions of Sodium Borohydride in Carboxylic Acid Media - New Synthetic Methodology," G.W. Gribble, Ventron Metal Hydrides Symposium, Elizabeth, New Jersey, May 15, 1979.

18. "Reactions of Sodium Borohydride in Carboxylic Acid Media - New Synthetic Methodology," G.W. Gribble, Ventron Metal Hydrides Symposium, Cherry Hill, New Jersey, May 16, 1979.

19. "Reactions of Sodium Borohydride in Carboxylic Acid Media - New Synthetic Methodology," G.W. Gribble, Ventron Metal Hydrides Symposium, South Bend, Indiana, May 17, 1979.

20. "TCDD - A Deadly Molecule," G.W Gribble, Agent Orange Informational Seminar, Vietnam Veterans, Manchester, New Hampshire, June 14, 1980 (invited speaker).

21. "Synthetic Utility of 3-Halo-4-lithiopyridines," G.W. Gribble and M.G. Saulnier, Second Chemi cal Congress of the North American Continent, Las Vegas, Nevada, August 24-29, 1980.

22. "Synthesis and Long-Range H-F NMR Coupling of 5-Fluoro-1,2,3,4- tetrahydrophenanthrenes," G.W. Gribble and W.J. Kelly, Second Chemical Congress of the North American Continent, Las Vegas, Nevada, August 24-29, 1980.

23. "TCDD - A Deadly Molecule," G.W. Gribble, Agent Orange Informational Seminar, Nashua, New Hampshire, October 16, 1980 (invited speaker).

24. "Biomimetic Approach to Elaeocarpus Alkaloids. A Short Convergent Synthesis of Elaeocarpi dine," R.M. Soll and G.W. Gribble, 181st American Chemical Society Meeting, Atlanta, Georgia, March 29-April 3, 1981.

25. "TCDD - A Deadly Molecule," G.W. Gribble, Agent Orange Informational Seminar, Nashua Public Library, Nashua, New Hampshire, May 27, 1981 (invited speaker).

26. "A Convergent Approach to Ellipticine and Isoellipticine via New Indole Lithiation Methodology," M.G. Saulnier and G.W. Gribble, 11th Northeast Regional American Chemical Society Meeting, Rochester, New York, October 18-21, 1981.

27. "An Efficient, Convergent Synthesis of Polyhalogenated Benz[a]anthracenes," G.W. Gribble, C.S. LeHoullier, and M.P. Sibi, 183rd American Chemical Society Meeting, Las Vegas, Nevada, March 28-April 2, 1982.

28. "A Practical Synthesis of Ellipticines," M.G. Saulnier and G.W. Gribble, 12th Northeast Regional American Chemical Society Meeting, Burlington, Vermont, June 27-30, 1982.

29. "Metalated Heterocycles in Natural Product Synthesis," G.W. Gribble, Heterocycles Gordon Conference, New Hampton, New Hampshire, July 12-16, 1982 (invited speaker).

30. "Synthesis of Isoellipticine and 7-Methoxyisoellipticine," M.G. Saulnier and G.W. Gribble, 185th American Chemical Society Meeting, Seattle, Washington, March 20-25, 1983.

31. "Efficient Syntheses of Chrysenes, Dibenzo[b,k]chrysenes, and Naphthacenes," C.S. LeHoullier and G.W. Gribble, 185th American Chemical Society Meeting, Seattle, Washington, March 20-25, 1983.

32. "A Biomimetically-Patterned Approach to the Synthesis of Aristotelia Alkaloids," R.B. Perni and G.W. Gribble, 13th Northeast Regional American Chemical Society Meeting, Hartford, Connec ticut, June 26-29, 1983.

33. "Synthesis and Screening of Anticancer Ellipticine Derivatives," G.W. Gribble, D.M. Ketcha, J.A. Obaza-Nutaitis, G.D. Jaycox, and M.G. Saulnier, 8th Regional Cancer Research Sym posium, Burlington, Vermont, November 4-5, 1984.

34. "The Synthesis of Pyridocarbazole Dimers and Derivatives," J.A. Obaza-Nutaitis and G.W. Gribble, 189th American Chemical Society Meeting, Miami Beach, Florida, April 28-May 3, 1985.

35. "Studies Toward the Total Synthesis of [1n]Paracyclophanes," C.F. Nutaitis and G.W. Gribble, 189th American Chemical Society Meeting, Miami Beach, Florida, April 28-May 3, 1985.

36. "Convergent Approach to Elaeocarpus Alkaloids via Pyrrolinium Ion Trapping," G.W. Gribble, F.L. Switzer, and R.M. Soll, 189th American Chemical Society Meeting, Miami Beach, Florida, April 28-May 3, 1985.

37. "Metalation of Heterocycles," G.W. Gribble, Organizer and Chairman, Special Symposium at the Tenth International Congress of Heterocyclic Chemistry, University of Waterloo, Ontario, Canada, August 11-16, 1985.

38. "A Stereocontrolled Total Synthesis of Hobartine," T.C. Barden and G.W. Gribble, 190th American Chemical Society Meeting, Chicago, Illinois, September 8-13, 1985.

39. "Chemical Toxicity in the Cultured Marble Industry," G.W. Gribble, Keynote Address, Northeast Cultured Marble Association Meeting, Ascutney Mountain Resort, Brownsville, Vermont, March 1, 1986.

40. "Synthesis and Diels-Alder Reactions of Furo[3,4-b]indoles. A New Synthesis of Carbazoles," D.J. Keavy and G.W. Gribble, 191st American Chemical Society Meeting, New York, New York, April 13-18, 1986.

41. "Generation of 3-Lithioindoles by Directed Metalation: A New Route to the Indolo[2,3-a]quinolizine Ring System," D.A. Johnson and G.W. Gribble, 191st American Chemical Society Meeting, New York, New York, April 13-18, 1986.

42. "Synthetic Studies on Anticancer Ellipticine Alkaloids and Related Pyridocarbazoles," G.W. Gribble, 27th Annual Medicinal Chemistry Symposium, State University of New York at Buffalo, May 19-21, 1986 (invited speaker).

43. "Recent Adventures in Indole Alkaloid Synthesis," G.W. Gribble, First Symposium of Distinguished Oregon Chemists, Eugene, Oregon, August 29, 1986 (invited speaker).

44. "Synthesis and Antitumor Activity of Novel Bis-9-Aminoacridines," G.D. Jaycox, G.W. Gribble, and M.P. Hacker, Poster presented at the 193rd American Chemical Society Meeting, Denver, Colorado, April 5-10, 1987.

45. "Unexpected Regioselectivity in Furan Aryne Diels-Alder Reactions," G.W. Gribble and D.J. Keavy, 193rd American Chemical Society Meeting, Denver, Colorado, April 5-10, 1987.

46. "A Novel Synthetic Approach to the Zwitterionic Indolo[2,3-a]quinolizine Alkaloids," G.W. Gribble and David A. Johnson, Invited Poster Presentation at the Heterocycles Gordon Conference, New Hampton, New Hampshire, July 5-10, 1987.

47. "The Chemoselective Reduction of Indolyl Ketones with Sodium Borohydride in Trifluoroacetic Acid," D.M. Ketcha, D.F.J. Homan, and G.W. Gribble, 195th American Chemical Society Meeting, Toronto, Ontario, Canada, June 5-10, 1988.

48. "Diels-Alder Reactions of 3-Fluorobenzyne and Substituted Furans," S.E. Branz, G.W. Gribble, and D.J. Keavy, Invited Poster Presentation at the Heterocycles Gordon Conference, New Hampton, New Hampshire, July 10-15, 1988.

49. "Twenty Years of Indole Chemistry," G.W. Gribble, American Cyanamid Award Address for "Excellence in the advancement of the science and art of chemical synthesis and in training young people in its practice," Hanover, New Hampshire, September 8, 1988.

50. "The Diels-Alder Reactions of 3-Fluorobenzyne with Substituted Furans," S.E. Branz, G.W. Gribble, and D.J. Keavy, 27th Pacific Conference on Chemistry and Spectroscopy, San Francisco, California, October 26-28, 1988.

51. "Unexpected Products in the Attempted Preparation of 2-Alkyl-3,4-diphenylcyclopentadienones," S.E. Branz and G.W. Gribble, 27th Pacific Conference on Chemistry and Spectroscopy, San Francisco, California, October 26-28, 1988.

52. "An Expedient Approach to the Indolo[2,3-a]carbazole Alkaloids," S.J. Berthel and G.W. Gribble, 197th American Chemical Society Meeting, Dallas, Texas, April 9-14, 1989.

53. "Metalated Heterocycles in the Synthesis of Natural Products," G.W. Gribble, 12th International Congress of Heterocyclic Chemistry, Jerusalem, Israel, August 13-17, 1989 (invited speaker).

54. "Diels-Alder Reactions of Furo[3,4-b]indoles: Synthetic Approaches to Pyridocarbazoles," D.A. Davis and G.W. Gribble, 198th American Chemical Society Meeting, Miami, Florida, September 10-15, 1989.

55. "Total Synthesis of Fascaplysin," B. Pelcman and G.W. Gribble, 199th American Chemical Society Meeting, Boston, Massachusetts, April 22-27, 1990.

56. "Synthesis and Chemistry of 3-Indolyl Triflate," S.C. Conway and G.W. Gribble, 199th American Chemical Society Meeting, Boston, Massachusetts, April 22-27, 1990.

57. "Conformationally Restricted and Rigid Probes for Nucleic Acid Structure," G.D. Jaycox, G.W. Gribble, J.K. Barton, and N.J. Turro, 199th American Chemical Society Meeting, Boston, Massachusetts, April 22-27, 1990.

58. "Conformationally Restricted Bis(9-aminoacridines): DNA Binding and Antitumor Properties," G.D. Jaycox, G.W. Gribble, M. Cory, T.A. Fairley, and M.P. Hacker, 199th American Chemical Society Meeting, Boston, Massachusetts, April 22-27, 1990.

59. "Relative Hazards of Pesticide Applications," G.W. Gribble, International Society of Arboriculture Conference, Portsmouth, New Hampshire, October 28-31, 1990 (invited speaker).

60. "Conformationally Restricted Bis(9-aminoacridines): DNA Binding and Antitumor Properties," G.D. Jaycox, M.D. Mosher, and G.W. Gribble, 25th Middle Atlantic Regional American Chemical Society Meeting, Newark, Delaware, May 21-23, 1991.

61. "Total Synthesis of Fascaplysin and Homofascaplysins," B. Pelcman and G.W. Gribble, 13th International Congress of Heterocyclic Chemistry, Corvallis, Oregon, August 11-16, 1991.

62. "Herbicides and Chemophobia," J.J. Worman and G.W. Gribble, Annual International Society of Arboriculture Conference, Philadelphia, Pennsylvania, August 11-14, 1991.

63. "Synthesis and Reactions of 4H-Furo[3,4-b]indoles: Stable Synthetic Analogues of Indole-2,3-Quinodimethanes," G.W. Gribble, 23rd Northeast Regional American Chemical Society Meeting, Boston, Massachusetts, June 22-25, 1993 (invited speaker).

64. "Studies in Indole Alkaloid Synthesis," G.W. Gribble, 16th Gulf Coast Chemistry Conference, Pensacola Beach, Florida, September 16-18, 1993 (invited speaker).

65. "Marine Organisms: A New Source of Pharmaceutical Drugs," G.W. Gribble, Nathan Smith Premedical Society, Dartmouth College, May 17, 1994 (invited speaker).

66. "Double Cycloadditions of Munchnones with 1,5-Cyclooctadiene," F.L. Switzer and G.W. Gribble, Joint Central and Great Lakes Regional American Chemical Society Meeting, Ann Arbor, Michigan, June 1-3, 1994.

67. "Anticancer Natural Products: Synthetic Targets or Chemotherapeutic Agents? - A Dilemma for the Organic Chemist," G.W. Gribble, Symposium on Natural Products in Chemoprevention of Cancer; American Association for Cancer Research Annual Meeting, Toronto, Ontario, March 19-22, 1995 (invited speaker).

68. "The Natural Production of Chlorinated Compounds," G.W. Gribble, Technical Association of the Pulp and Paper Industry Environmental Conference, Fogelville, Pennsylvania, April 5, 1995 (invited speaker) (Due to a conflict with the Anaheim ACS Meeting, this paper will be presented by Professor James Worman).

69. "Dipolar Cycloaddition Reactions of Munchnones: Synthesis and Conformational Analysis of 10-Azatetracyclo[6.3.0.04,110.5,9]undecanes," G.W. Gribble, W.R. Sponholtz, M.R. Reese, J.H. Bushweller, F.L. Switzer, J.R. Buck, G.J. Cost, R.P. Fredeldey, Jr., C. .H. Bushweller, J.H. Brown, 209th American Chemical Society Meeting, Anaheim, California, April 2-6, 1995.

70. "The Diversity of Natural Organohalogen Compounds," G.W. Gribble, 209th American Chemical Society Meeting, Anaheim, California, April 2-6, 1995.

71. "Dioxin, CFC's, and Chlorine Chemistry," G.W. Gribble, 5th Annual Maine Conservation Rights Congress, Bangor, Maine, April 29, 1995 (invited speaker).

72. "Naturally Occurring Organochlorine Compounds," G.W. Gribble, Technical Association of the Pulp and Paper Industry Environmental Conference, Atlanta, Georgia, May 7-10, 1995 (invited speaker).

73. "Sodium Borohydride and Carboxylic Acids - An Implausible Reagent Combination?," G.W. Gribble, Hydride Symposium, 210th American Chemical Society Meeting, Chicago, Illinois, August 20-25, 1995 (invited speaker).

74. "Naturally Occurring Organochlorine Compounds," G.W. Gribble, Chlorine in the Paper Industry Symposium, 210th American Chemical Society Meeting, Chicago, Illinois, August 20-25, 1995 (invited speaker).

75. "Approaches to the Synthesis of Mexican Bean Beetle Azamacrolides," R. A. Silva and G.W. Gribble, 25th Northeast Regional American Chemical Society Meeting, Rochester, New York, October 22-25, 1995.

76. "Dartmouth College Chemistry Graduate Program," G.W. Gribble, 25th Northeast Regional American Chemical Society Meeting, Rochester, New York, October 22-25, 1995 (poster at Graduate Student Fair).

77. "Chemicals in Wine and Winemaking," G.W. Gribble, National American Wine Society Conference, Long Island, New York, November 2-6, 1995 (invited speaker).

78. "Approaches to the Synthesis of Mexican Bean Beetle Azamacrolides," G.W. Gribble and R. A. Silva, International Chemical Congress of Pacific Basin Societies, Honolulu, Hawaii, December 17-22, 1995.

79. "The Natural Production of Organohalogen Compounds," G.W. Gribble, International Chemical Congress of Pacific Basin Societies, Honolulu, Hawaii, December 17-22, 1995.

80. "Study of Triterpenoids as Cellular Differentiation Agents," Y. Wang, N. Suh, C.P. Williams, T. Honda, H.J. Finlay, G.W. Gribble, and M.P.Sporn, New England Pharmacologists 25th Annual Meeting, Boxborough, Massachusetts, February 2-3, 1996.

81. "The Natural Production of Organochlorine Compounds," G.W. Gribble and J.J. Worman, MIT Chlorine Conference on The Future Uses of Chlorine, Cambridge, Massachusetts, June 12-13, 1996.

82. "A Novel Synthesis of the Pyrrolo[2,3-b]indole Ring System," G.W. Gribble, E.T. Pelkey, L. Chang, and D.H. Blank, Electronic Conference on Heterocyclic Chemistry, June 24-July 22, 1996.

83. "Novel Indole Chemistry in the Synthesis of Natural Products," G.W. Gribble, 8th FECHEM Conference on Heterocycles in Bio-Organic Chemistry, Lake Como, Italy, September 1-3, 1996 (invited speaker).

84. "A Survey of Natural Organohalogen Compounds," G.W. Gribble, Mechanisms of Biohalogenation and Dehalogenation Colloquium, Royal Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands, September 16-18, 1996 (invited speaker).

85. "Investigation into the Chemistry of 2- and 3-Nitroindoles," E.T. Pelkey and G.W. Gribble, 15th Humphrey Memorial Symposium, University of Vermont, Burlington, Vermont, October 5, 1996.

86. "A Novel Atom Transfer Approach to the Indolo[2,3-a]quinolizidine Ring System," H.L. Hassinger and G.W. Gribble, 15th Humphrey Memorial Symposium, University of Vermont, Burlington, Vermont, October 5, 1996.

87. "A Novel Synthetic Strategy Towards Pentaprismane," W.R Sponholtz and G.W. Gribble, 15th Humphrey Memorial Symposium, University of Vermont, Burlington, Vermont, October 5, 1996.

88. "1,3-Dipolar Cycloaddition Chemistry of Mesoionic Compounds and 1,4-Epoxy-1,4-dihydronaphthalenes: A New Synthetic Route to Benz[f]isoindoles," D.H. Blank and G.W. Gribble, 15th Humphrey Memorial Symposium, University of Vermont, Burlington, Vermont, October 5, 1996.

89. "Chemicals in Wine and Winemaking," G.W. Gribble, National American Wine Society Conference, Hilton Head, South Carolina, November 14-16, 1996 (invited speaker).

90. "Naturally Occurring Organochlorines: Nature's Own Persistent, Bioaccumulative, and Toxic Chemicals," G.W. Gribble and J.J. Worman, 17th Annual Meeting of the Society of Environmental Toxicology and Chemistry, Washington, D.C., November 17-21, 1996 (invited speaker).

91. "The Natural Production of Organobromine Compounds," G.W. Gribble and J.J. Worman, OrgaBrom '97 Conference, Baton Rouge, Louisiana, February 3-7, 1997.

92. "Progress Towards Diphenylpentaprismane," W.R. Sponholtz, III, F.L. Switzer, G.W. Gribble, M.P. Byrn, and C.E. Strouse, 213th American Chemical Society Meeting, San Francisco, California, April 13-17, 1997.

93. "Michael Additions to 3-Nitroindoles. Investigation into the Syntheses of Pyrrolo[2,3-b]indoles and Pyrrolo[3,4-b]indoles," E.T. Pelkey and G.W. Gribble, 213th American Chemical Society Meeting, San Francisco, California, April 13-17, 1997.

94. "A Novel Atom Transfer Approach to the Indolo[2,3-a]quinolizidine Ring System," H.L. Hassinger and G.W. Gribble, 213th American Chemical Society Meeting, San Francisco, California, April 13-17, 1997.

95. "The Effects of A and C Ring Modification of Oleanolic and Ursolic Acid on the Inhibition of Nitrous Oxide in Mouse Macrophages," H. Finlay, G.W. Gribble, T. Honda, N. Suh and M.B. Sporn, 213th American Chemical Society Meeting, San Francisco, California, April 13-17, 1997.

96. "New Triterpenoids as Cancer Preventive and Anti-inflammatory Agents," N. Suh, T. Honda, H. Finlay, A. Barchowsky, Q. Xie, C.F. Nathan, G.W. Gribble, and M.B. Sporn, 88th American Association for Cancer Research Annual Meeting, San Diego, California, April 12-16, 1997.

97. "Novel Lithiation and Cycloaddition Chemistry of Heterocycles," G.W. Gribble, 21st Century Heterocyclic Conference, University of Sunderland, England, May 7, 1997 (invited speaker).

98. "Novel Lithiation and Cycloaddition Chemistry of Heterocycles," G.W. Gribble, Royal Society of Chemistry Heterocyclic Group: 13th Lakeland Heterocyclic Symposium, Grasmere, England, May 8-12, 1997 (invited speaker).

99. "A Versatile Synthetic Approach to Ellipticine and Its Analogues," H.L. Hassinger and G.W. Gribble, 27th Northeast Regional American Chemical Society Meeting, Saratoga Springs, New York, June 22-25, 1997.

100. "An Unexpected Oxygen Extrusion In Aryne-Furan Diels-Alder Reactions," D.H. Blank and G.W. Gribble, 27th Northeast Regional American Chemical Society Meeting, Saratoga Springs, New York, June 22-25, 1997.

101. "Preparation and Biological Studies of 6-Aminoindolo[1,2-b][2,7]naphthyridine-5,12-quinones," D.A. Davis and G.W. Gribble, 16th International Congress of Heterocyclic Chemistry, Bozeman, Montana, August 10-15, 1997.

102. "'Chlorophobia' The Irrational Fear of Chlorine and Organochlorine Compounds," G.W. Gribble, Symposium on Basics of Chemical Toxicology as an Integral Part of Teaching Chemistry, 214th American Chemical Society Meeting, Las Vegas, Nevada, September 8-11, 1997 (Invited).

103. "A New Synthetic Route to Substituted Benz[f]isoindoles: 1,3-Dipolar Cycloaddition Chemistry of Mesoionic Compounds and 1,4-Epoxy-1,4-dihydronaphthalenes," D.H. Blank and G.W. Gribble, 214th American Chemical Society Meeting, Las Vegas, Nevada, September 8-11, 1997.

104. "Synthesis and Reactions of 2-Nitroindoles," E.T. Pelkey and G.W. Gribble, 214th American Chemical Society Meeting, Las Vegas, Nevada, September 8-11, 1997.

105. "Novel Tandem 1,3-Dipolar Cycloaddition Reactions of Münchnones. An Approach to Pentaprismane," G.W. Gribble, W.R. Sponholtz, III, F.L. Switzer, and M.P. Byrn, 5th Chemical Congress of North America, Cancun, Mexico, November 11-15, 1997.

106. "New Synthetic Oleanane and Ursane Triterpenoids as Inhibitors of Nitric Oxide Production in Mouse Macrophages," T. Honda, H.J. Finlay, N. Suh, M.B. Sporn, and G.W. Gribble, 5th Chemical Congress of North America, Cancun, Mexico, November 11-15, 1997.

107. "Naturally Occurring Organobromines: Nature's Own Persistent, Bioaccumulative, and Toxic Chemicals," G.W. Gribble and J.J. Worman, 18th Annual Meeting of the Society of Environmental Toxicology and Chemistry, San Francisco, California, November 16-20, 1997.

108. "Sodium Borohydride in Carboxylic Acid Media: A Remarkably Versatile Synthetic Reagent," G.W. Gribble, Society of Commercial Synthetic Organic Chemists, New Orleans, Louisiana, January 26-28, 1998.

109. "3a-OH Epimer of Ursolic Acid Inhibits Inducible Cyclooxygenase (COX-2) in Colon Myofibroblasts," Y. Wang, N. Suh, C.P. Williams, T. Honda, H. Finlay, G.W. Gribble, and M.B. Sporn, New England Pharmacologists 27th Annual Meeting, Boston, Massachusetts, February 6-7, 1998.

110. "Novel Triterpenoids Suppress Inducible Nitric Oxide Synthase (iNOS) and Inducible Cyclooxygenase (COX-2)," N. Suh, C. Williams, Q. Xie, C. Nathan, T. Honda, H. Finlay, G.W. Gribble, and M.B. Sporn, 89th American Association for Cancer Research Annual Meeting, New Orleans, Louisiana, March 28 - April 1, 1998.

111. "Synthesis of 4-Acetamidocarbazoles from Pyrrolo[3,4-b]indoles: An Approach to Antiostatin A1," E.T. Pelkey and G.W. Gribble, 216th American Chemical Society Meeting, Boston, Massachusetts, August 23-27, 1998.

112. "A New Synthesis of Pyrrolo[3,4-b]indoles: Regioselective 1,3-Dipolar Cycloadditions Between Münchnones and Nitroheterocycles," E.T. Pelkey, W.T. Simon, and G.W. Gribble, 216th American Chemical Society Meeting, Boston, Massachusetts, August 23-27, 1998.

113. "Free Radical Reactions of 3-Substituted-2-Bromoindoles," H.L. Hassinger and G.W. Gribble, 216th American Chemical Society Meeting, Boston, Massachusetts, August 23-27, 1998.

114. "Natural Organohalogens: An Update," G.W. Gribble and J.J. Worman, 216th American Chemical Society Meeting, Boston, Massachusetts, August 23-27, 1998.

115. "New Syntheses of Pyrrolo[3,4-b]indoles, Benzo[b]furo[2,3-c]pyrroles, and Benzo[b]thieno-[2,3-c]pyrroles Utilizing the Reaction of Münchnones (1,3-Oxazolium-5-olates) with Nitroheterocycles," G.W. Gribble, E.T. Pelkey, W.M. Simon, H.A. Trujillo, and F.L. Switzer, XVIIIth European Colloquium on Heterocyclic Chemistry, Rouen, France, October 4-7, 1998.

116. "Recent Progress in the Tandem Cycloaddition of Münchnones with Cyclic Dienes," F. L. Switzer, P. R. Dowdy Jr., R. T. Bunn, and G. W. Gribble, 1998 Southeast Regional American Chemical Society Meeting, Research Triangle Park, North Carolina, November 4-7, 1998.

117. "Chemicals in the Golf Course Industry," G.W. Gribble, Turf Education Seminar, New Hampshire Golf Course Superintendents Association, Concord, New Hampshire, December 9, 1998.

118. "Naturally Occurring Chlorinated Compounds," G.W. Gribble, Drinking Water and Health Symposium, Sarasota, Florida, February 26-27, 1999.

119. "A Novel Synthetic Oleanane Triterpenoid, 2-Cyano-3,12-dioxoolean-1,9-dien-28-oic Acid (CDDO), Induces Cell Differentiation in Human Myeloid Leukemias," N. Suh, J.J. Letterio, A.E. Place, C.R. Williams, L. Nguyen, T. Honda, G.W. Gribble, and M.B. Sporn, 90th American Association for Cancer Research Annual Meeting, Philadelphia, Pennsylvania, April 10 - April 14, 1999.

120. "A Novel Synthetic Triterpenoid, 2-Cyano-3,12-dioxoolean-1,9-dien-28-oic Acid (CDDO), Induces Adipocyte Differentiation in 3T3-L1 Cells," Y. Wang, N. Suh, T. Honda, C.R. Williams, G.W. Gribble, and M.B. Sporn, 90th American Association for Cancer Research Annual Meeting, Philadelphia, Pennsylvania, April 10 - April 14, 1999.

121. "Naturally Occurring Organohalogen Compounds: Structures, Sources, and Possible Function," G.W. Gribble, First International Symposium on Atmospheric Reactive Substances: Environmental Relevance of Natural and Man-Made Contributions, University of Bayreuth, Bayreuth, Germany, April 14-16, 1999.

122. "Novel Additions of Nucleophiles to Electrophilic 2- and 3- Nitroindoles," T.L.S. Kishbaugh, E.T. Pelkey, and G.W. Gribble, 28th Northeast Regional American Chemical Society Meeting, Potsdam, New York, June 22-25, 1999.

123. "Two Triterpenoids, CDDO and TP155, are Potent Inducers of Apoptosis in Non-Small Cell Lung Cancer Cells," K.B. Kim, R. Lotan, P. Yue, M.B. Sporn, N. Suh, G.W. Gribble, T. Honda, W.K. Hong, and S.Y. Sun, 1st International Chicago Symposium on Malignancies of the Chest and Head & Neck, Chicago, Illinois, 1999.

124. "The Natural Production of Organobromine Compounds," G.W. Gribble, Dioxin99, Venice, Italy, September 12-17, 1999.

125. "Structure Elucidation and Determination of Some Physical Properties of a Possibly Naturally-Produced Organohalogen," S.A. Tittlemier, D.H. Blank, G.W. Gribble, and R.J. Norstrom, 20th Annual Meeting of the Society of Environmental Toxicology and Chemistry, Philadelphia, Pennsylvania, November 14-18, 1999.

126. "Chlorinated Compounds in the Environment: Nature's Recent Contributions," G.W. Gribble and J.J. Worman, 20th Annual Meeting of the Society of Environmental Toxicology and Chemistry, Philadelphia, Pennsylvania, November 14-18, 1999.

127. "CDDO, A Novel Synthetic Oleanane Triterpenoid, Suppresses Nitric Oxide Production and Synthesis of Inducible Nitric Oxide Synthase (iNOS) in Female CD-1 Mice," N. Suh, Y. Wang, C. Williams, R. Risingsong, T. Honda, B. Rounds, L. Bore, G.W. Gribble, and M.B. Sporn, 91st American Association for Cancer Research Annual Meeting, San Francisco, California, April 1-5, 2000.

128. "A Synthetic Triterpenoid, 2-Cyano-3,12-dioxooleana-1,9-dien-28-oic Acid CDDO), is a Ligand for the Peroxisome Proliferator-Activated Receptor g," Y. Wang, W.W. Porter, N. Suh, T. Honda, G.W. Gribble, D.J. Mangelsdorf, S.G. Blanchard, T.M. Willson, and M.B. Sporn, 91st American Association for Cancer Research Annual Meeting, San Francisco, California, April 1-5, 2000.

129. "Effects of a Novel Triterpenoid, 2-Cyano-3,12-dioxoolean-1,9-dien-28-oic acid (CDDO), on Collagenase-3 (Matrix Metalloproteinase-13) Gene Expression," K.S. Mix, J.A. Mengshol, M.P. Vincenti, T. Honda, G.W. Gribble, and M.B. Sporn, 91st American Association for Cancer Research Annual Meeting, San Francisco, California, April 1-5, 2000.

130. "Caspase-3 Activation is Involved in Apoptosis Induced by a Synthetic Triterpenoid in Non-Small Cell Lung Cancer (NSCLC) Cells," K.B.S. Kim, R. Lotan, P. Yue, M.B. Sporn, N. Suh, G.W. Gribble, T. Honda, W.K. Hong, and S.Y. Sun, 91st American Association for Cancer Research Annual Meeting, San Francisco, California, April 1-5, 2000.

131. "Structure Elucidation of a Novel, Bioaccumulating Organohalogen Using Isotope Exchange Positive Chemical Ionization Mass Spectrometry and Retention Time Comparison," S.A. Tittlemier, D.H. Blank, G.W. Gribble, and R.J. Norstrom, Third Biennial International Conference on Monitoring and Measurement of the Environment, Ottawa, Ontario, Canada, May 8-11, 2000.

132. "New Triterpenoids for Prevention of Breast Cancer," N. Suh, Y. Wang, C. Williams, R. Risingsong, T. Honda, L. Bore, G.W. Gribble, and M.B. Sporn, DoD Breast Cancer Research Program, Era of Hope, Hilton Atlanta and Towers, Atlanta, Georgia, June 8-12, 2000.

133. "Novel Synthetic Oleanane and Ursane Triterpenoids with Ring A and C Modifications: A Series of Highly Active Inhibitors of Nitric Oxide Production in Mouse Macrophages," T. Honda, G.W. Gribble, B.V. Rounds, N. Suh, H.J. Finlay, L. Bore, F.G. Favaloro, Jr., Y. Wang, M.B. Sporn, 220th American Chemical Society Meeting, Washington, D.C., August 20-24, 2000.

134. "Novel Synthetic Oleanane and Ursane Triterpenoids with Various Enone Functionalities in Ring A as Inhibitors of Nitric Oxide Production in Mouse Macrophages," T. Honda, G.W. Gribble, N. Suh, H.J. Finlay, B.V. Rounds, L. Bore, F.G. Favaloro, Jr., Y. Wang, M.B. Sporn, 220th American Chemical Society Meeting, Washington, D.C., August 20-24, 2000.

135. "Investigation into the Chemistry of 2- and 3-Nitroindoles," T.L.S. Kishbaugh, E.T. Pelkey, and G.W. Gribble, 19th Humphrey Memorial Symposium, University of Vermont, Burlington, Vermont, September 30, 2000.

136. "Novel Atom Transfer Reactions of Various 2-Bromo-3-substituted Indoles," J.C. Badenock, Heidi L. Hassinger, and G.W. Gribble, 19th Humphrey Memorial Symposium, University of Vermont, Burlington, Vermont, September 30, 2000.

137. "Into the 21st Century: Natural Sources of Organohalogen Compounds," G.W. Gribble and J.J. Worman, 21st Annual Meeting of the Society of Environmental Toxicology and Chemistry, Nashville, Tennessee, November 12-16, 2000.

138. "Novel Chemistry of 2- and 3-Nitroindoles," G.W. Gribble, T.L.S. Kishbaugh, E.T. Pelkey, and H.A. Trujillo, International Chemical Congress of Pacific Basin Societies, Honolulu, Hawaii, December 14-19, 2000.

139. "Novel Synthetic Oleanane and Ursane Triterpenoids with Enone Functionalities in Rings A and C: A Series of Highly Active Inhibitors of Nitric Oxide Production in Mouse Macrophages," T. Honda, G.W. Gribble, B.V. Rounds, N. Suh, H.J. Finlay, L. Bore, F.G. Favaloro, Jr., Y. Wang, M.B. Sporn,, International Chemical Congress of Pacific Basin Societies, Honolulu, Hawaii, December 14-19, 2000.

140. "Into the 21st Century: Organohalogen Compounds from Natural Sources," G.W. Gribble, and J.J. Worman, International Chemical Congress of Pacific Basin Societies, Honolulu, Hawaii, December 14-19, 2000.

141. "Differential Effects of Indolocarbazole Derivatives in Modifying Sensitivity to Cytotoxic Agents," A.R. Eastman, M.K. Brown, D.H. Blank, G.W. Gribble,Proceedings of American Association for Cancer Research, Section 11 Experimental/Molecular Therapeutics, New Orleans, LA, March 25-28, 2001.

142. "New One-Pot syntheses of Indoles via Base Promoted Cyclocondensation Between m-Nitroanilines and Ketones or Nitriles," N.V. Moskalev, M. Makosza, and G.W. Gribble, 30th Northeast Regional American Chemical Society Meeting, Durham, New Hampshire, June 24-27, 2001.

143. "First Evidence of Furo[3,4-b]pyrrole Ring System Formation: A New Route to Substituted Indoles," N.V. Moskalev and G.W. Gribble, 30th Northeast Regional American Chemical Society Meeting, Durham, New Hampshire, June 24-27, 2001..

144. "New Indole Chemistry," G.W. Gribble, T.L.S. Kishbaugh, Y. Liu, J.C. Badenock, J. Jiang, N. Moskalev, and R. Chau, 30th Northeast Regional American Chemical Society Meeting, Durham, New Hampshire, June 24-27, 2001 (invited speaker).

145. "Naturally Occurring Organohalogen Compounds &emdash; Recent Developments and Discoveries," G.W. Gribble, 222nd American Chemical Society Meeting, Chicago, Illinois, August 26-30, 2001 (invited speaker).

146. "New Reactions of Nitroindoles," T.L.S. Kishbaugh and G.W. Gribble, 222nd American Chemical Society Meeting, Chicago, Illinois, August 26-30, 2001.

147. "Diversity of Naturally Produced Organohalogens &emdash; An Overview," G.W. Gribble, 2nd International Conference on Naturally Produced Organohalogens, Heidelberg, Germany, September 30 &endash; October 3, 2001 (keynote speaker).

148. "The New Millennium and Natural Organohalogen Compounds: Update 2001," G.W. Gribble and J.J. Worman, 22nd Annual Meeting of the Society of Environmental Toxicology and Chemistry, Baltimore, MD, November 11-15, 2001.