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John Cochran

Professor of Chemistry, Emeritus
Chemistry , B9 Wynn Hall
p 315 2287233

Degree

 BA College of Wooster 1957
MA University of North Carolina 1960
PhD University of New Hampshire 1967

Teaching Experience

 Randolph-Macon Woman's College 1960-62; Visiting Professor, University of Wisconsin Summer 1977

Professional Experience

 Acting associate dean of students, Colgate University, 1976-78; coordinator for undergraduate research 1991-94, 1998-99; CUR councilor-chemistry division, 1994

Specialities

 Introductory and organic chemistry

Distinctions

 Sidney J. and Florence Felton French Prize 1999; Phi Eta Sigma Teacher of the Year Award 1987

Interests

 Teaching: Organic chemistry, general chemistry

Research: Synthesis and reactivity of organostannanes, especially vinylstannanes, organotin hydrides and organotin anions; promotion of organic reactions by ultrasound.

Publications
  • John C. Cochran, Kevin L. Caran*, Elizabeth A. Pierz*, and David M. Miller*, "Kinetics of the Uncatalyzed Hydrostannation of Diethyl Acetylenedicarboxylate," Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 33(5), 725-734 (2003)
  • John C. Cochran, Vicki Prindle*, Heather A. Young*, Mark H. Kumar*, Samson Tom*, Nicholas D. K. Petraco*, Clare Mohoro*, and Brenden Kelley*, “Alkyl- and Acyl-Substituted Vinylstannanes: Synthesis and Reactivity in Electrophilic Substitution Reactions,” Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 32, 885 (2002)
  • Nicholas D. K. Petraco*, David A. Modarelli, and John C. Cochran, “The Structure of the Intermediate Radical in the Hydrostannation of Phenylacetylene.” Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 31, 757, (2001)
  • John C. Cochran and Michael L. Neidig,* “CUR, NCUR and a Student perspective on a National Research Conference,” Journal of Chemical Education 7, 146 (2000)
  • Martin Gabriele*, Henry G. Kuivila, and John C. Cochran, "Catalysis of the Diels-Alder Reaction by Organotin Halides, Main Group Metal Chemistry 21, 207 (1998)
  • John C. Cochran, Kolbjorn Hagan, Quang Shen, Samson Tom*, Marit Traettiberg and Christopher Wells*, "On the Planarity of Styrene and Its Derivatives: The Molecular Structures of Styrene and (Z)-b-Bromostyrene as Determined by ab Initio Calculations and Gas-Phase Electron Diffraction," Journal of Molecular Structure  413-414, 313 (1997).
  • John C. Cochran, Susan R. Friedman* and John P. Frazier*, "Synthesis of Disulfides from the Palladium(0)-Catalyzed Reactions of Sulfenyl Halides and Organostannanes," Journal of Organic Chemistry 61, 1533 (1996).

Asterisks indicate undergraduate student co-authors

Research projects

For the past few years we have been interested in the synthesis, characterization and bioactivity of a series of compounds containing both a trisubstituted tin functional group and a dithiocarbamate functional group.  The compounds we are making have carbon spacers separating the tin and sulfur groups:

R3Sn(CH2)n SC(S)NEt2

R = Me, Bu, Ph
n = 4, 6

We have also used a cyclohexane ring as a spacer.  The synthetic chemistry has led us to a study of the conformational equilibria of cis- and trans- 1, 4-bromochlorocylohexane.

Other

 Grants: The Camille and Henry Dreyfus Foundation: Senior Scientist Mentor Initiative