Reductive cleavage of the carbon phosphorus bond with alkali metals. III. Reactions of arylalkylphosphines

JA van Doorn, N Meijboom

Index: Doorn, Johannes A. van; Meijboom, Nico Recueil des Travaux Chimiques des Pays-Bas, 1992 , vol. 111, # 4 p. 170 - 177

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Citation Number: 21

Abstract

Abstract The reductive cleavage of phenylalkylphosphines Ph 2 PR, PhPR 2 (R= Bu, iPr) with Na/NH 3 is unselective: both phenyl and alkyl groups can be cleaved and Birch reduction may occur. Reaction of Ph 2 tBuP gives a high yield of diphenylphosphide. Polar groups (CO 2 Na, SO 3, Na) at the ω position of primary alkyl groups may lead to an increase in selectivity; Birch reduction is suppressed and a functionalised secondary ...