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On the mechanism of the 1,2‐cycloaddition of azobenzenes to ketenimines
Author(s) -
Barker Marvin W.,
Jones Raymond H.
Publication year - 1972
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570090316
Subject(s) - chemistry , steric effects , cycloaddition , stereoselectivity , mechanism (biology) , solvent , photochemistry , computational chemistry , stereochemistry , medicinal chemistry , organic chemistry , catalysis , philosophy , epistemology
Abstract The 1,2‐cycloaddition of unsymmetrical azobenzenes has been found to be stereoselective and the rate is essentially solvent independent. These observations lead to the postulation of a near concerted process which encounters a steric effect after alignment.