Observation in the periselective photoadditions of electron-donating or electron-accepting anthracenes to cyclohepta-1, 3, 5-triene by orbital and steric interaction …

H Kondo, M Mori, K Kanematsu

Index: Kondo, Hirosato; Mori, Masato; Kanematsu, Ken Journal of Organic Chemistry, 1980 , vol. 45, # 26 p. 5273 - 5278

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Abstract

Irradiations (12-CC14 filter solution, 340-420 nm) of substituted anthracenes with a large excess of cyclohepta-1, 3, 5-triene in various solvents afforded a variety of photoaddition products in moderate yields. These periselective formations are explained in terms of the following controlling factors:(1) orbital interactions,(2) steric interactions.

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