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Photochemical reactions of carbonyl compounds in solution The Paterno-Büchi reaction

✍ Scribed by N.C. Yang; Manesse Nussim; Margaret J. Jorgenson; Steven Murov

Publisher
Elsevier Science
Year
1964
Tongue
French
Weight
369 KB
Volume
5
Category
Article
ISSN
0040-4039

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✦ Synopsis

In a series of elegant investigations Hammond demonstrated that the triplet state is the reactive state in the photoreductions of aromatic car-bony1 compounds and the photosensitized reactions by these compounds.' Independent contributions by Porters2 F!itts3 and Backstrom are in agreeaaent with this finding. 'Pne importance of the nature of the low-lying triplet state is illustrated by the difference in the behavior of benzophenone and acetonaphthone. The former has an n-.x* low-lying triplet stats and is photoreduced by alcohols and alkylbeneenes; the latter has a n-r%* low-lying triplet state and is only photoreduced in the presence of strong reducing agents.5'6 In this investigation, the photochemical formation of oxetanes (1) G.

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