Photochemistry of substituted benzyldiphenylphosphine oxides

N Zhao, DC Neckers

Index: Zhao, Ningning; Neckers, Douglas C. Journal of Organic Chemistry, 2000 , vol. 65, # 7 p. 2145 - 2150

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Citation Number: 8

Abstract

Photochemical reactions (λ irr= 254 nm) of substituted benzyldiphenylphosphine oxides 1a- e have been investigated in benzene and acetonitrile. α-Cleavage from the singlet excited state is proposed as the primary process, and products formed both before and after escape of the primary intermediates from the solvent cage result. Radicals 2 and 3 are observed by nanosecond flash photolysis following excitation of 1a at 266 nm in acetonitrile. Acetone ...