Photochemical transformations of an o-vinylbenzophenone

KR Huffman, EF Ullman

Index: Huffman,K.R.; Ullman,E.F. Journal of the American Chemical Society, 1967 , vol. 89, # 22 p. 5629 - 5633

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Citation Number: 14

Abstract

Abstract: 2-(2-Methyl-1-phenylpropenyl) benzophenone (V) has been found to be photochromic at low temperatures, The colored species, which appears to be the valence tautomer VI, could be trapped as a Diels-Alder adduct with tetracyanoethylene. Prolonged ultraviolet irradiation of V in benzene afforded 1, l-dimethyl-2, 3-diphenyl-2, 3-epoxyindan (VIII), while in methanol 4, 4-dimethyl-l, 3-diphenyl-l-methoxyisochroman (X) was formed. ...