Tetrahedron

Photoreactions of aromatic compounds—XXXV: Nucleophilic photosubstitution of methoxy substituted aromatic compounds. Monophotonic ionization of the triplet

J Den Heijer, OB Shadid, J Cornelisse, E Havinga

Index: Den Heijer,J. et al. Tetrahedron, 1977 , vol. 33, p. 779 - 786

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Citation Number: 55

Abstract

Methoxy groups exert an activating and ortho/para directing influence in light induced nucleophilic substitution reactions (cyanation, hydroxylation, etc) of aromatic compounds in aqueous media. The first chemical step in these processes is monophotonic ionization of the aromatic compound in its lowest triplet state, followed by reaction of the radical cation with the nucleophile Quantum yields of photocyanation of 4-fluoro-and 4-chloroanisole ...

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