Photo-isomerisierung von 2, 4, 6-triphenyl-o-chinolestern

H Perst, K Dimroth

Index: Perst,H.; Dimroth,K. Tetrahedron, 1968 , vol. 24, p. 5385 - 5393

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Citation Number: 15

Abstract

By irradiation 2, 4, 6-triphenyl-o-quinolesters 1 are transformed to 1, 3, 6-triphenyl-6-acyloxy- bicyclo [3.1. 0] hex-2-en-4-ones 2; the reaction is thermally reversible. Photolysis of 1 and thermal rearrangement of 2 proceed via the same ketene-intermediate 12, the existence of which is proved by formation of pentadien-carboxamides 13 in the presence of sec-amines. Structures are confirmed by spectroscopy, reactions of 2 are presented.