Tetrahedron

Reactivity of iminophosphoranes towards some symmetrical dicarbonyl dichlorides: syntheses and mechanisms

T Aubert, M Farnier, R Guilard

Index: Aubert, Thierry; Farnier, Michel; Guilard, Roger Tetrahedron, 1991 , vol. 47, # 1 p. 53 - 60

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Citation Number: 35

Abstract

In situ generated iminophosphoranes 1 react with dicarbonyl dihalides 2a-b and 3a-c to give known or new nitrogen heterocycles. The proposed mechanisms involve elimination of either triphenyl-phosphine oxide or dichlorotriphenylphosphorane depending upon both the iminophosphorane and the dicarbonyl compound.

~67%

~62%

~70%

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