Chemistry Letters p. 9 - 12 (1982)
Update date:2022-08-04
Topics:
Inagaki, Masao
Shingaki, Tadao
Nagai, Toshikazu
The acetophenone-sensitized photolyses of benzoyl azide in cis- and trans-1,4-dimethylcyclohexanes gave the N-substituted benzamides stereospecifically.The photolyses in 2,3-dimethylbutane showed the same insertion regioselectivity ratio toward the C-H bonds as that of singlet benzoylnitrene in the direct photolysis.These facts indicate the existence of the singlet nitrene despite the triplet photosensitization and provide a chemical evidence for the establishment of a singlet-triplet equilibrium for benzoylnitrene.
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