Tetrahedron

Etude du mécanisme de la transformation photochimique d'alkylarènesulfonamido-2 cyclohexène-2 one en alkylamino-2 aryl-3 cyclohexène-2 one

J Cossy, JP Pete

Index: Cossy, Janine; Pete, Jean-Pierre Tetrahedron, 1981 , vol. 37, p. 2287 - 2296

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Abstract

When excited in their triplet excited state 2-arenesulfanamido-2-cyclohexenones lead to a very efficient desulfonation reaction and to migration of the aryl substituent. A wavelength effect was observed on the desulfonation product from direct irradiations. Furthermore, at 254 nm, a concentration effect and a quantum yield higher than unity indicate that a radical chain component was involved. The mechanism of this reaction is discussed taking into ...