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Updated: Aug 7, 2026

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Published on: May 29, 2018
Kinetic studies of the cyclization of singlet vinylchlorocarbenes
Robert A Moss1, Jingzhi Tian, Ronald R Sauers
1Department of Chemistry and Chemical Biology, Rutgers, State University of New Jersey, New Brunswick, New Jersey 08903, USA. moss@rutchem.rutgers.edu
Abstract:
[reaction: see text] Vinylchlorocarbenes (R = Me or Cl) cyclize to cyclopropenes with k = (2.4-5.1) x 10(7) s(-1) or (3.1-4.5) x 10(6) s(-1), respectively, in solution at room temperature. The corresponding E(a) values are 6.6 and 5.7 kcal/mol. Excited diazirines are also likely precursors of the cyclopropenes.
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