Helvetica Chimica Acta

Photochemische Reaktionen. 99. Mitteilung. Photochemistry of N??Acylimidazoles. IV. Structural Factors Leading to Norrish Type II Elimination and to Cyclobutanol …

S Iwasaki

Index: Iwasaki,S. Helvetica Chimica Acta, 1978 , vol. 61, p. 2831 - 2842

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Citation Number: 9

Abstract

Summary Conformational factors leading to Type I1 elimination and to cyclobutanol formation were studied in the irradiation of N-acylimidazoles with simple acyl groups as well as of their photochemical acyl migration products. ... Results and Discussion. Several N-acylimidazoles possessing hydrogen atoms at C(4') (y to the carbonyl group) were found to undergo efficient cleavage of acyl chain between C(2') and C(3') via a Norrish Type I1 process [2], and ...