Author:
Gallicano Keith D.,Oakley Richard T.,Paddock Norman L.,Sharma Rajendra D.
Abstract
The cyclic phosphazenes N3P3Ph4Me2, N3P3Me6, and N4P4Me8 are deprotonated by alkyllithiums. The resulting carbanions react with monofunctional electrophiles to form phosphazenes carrying the groups PCH2R (R = Me, Br, I, PhC(O), COOH AsMe2, Me3M (M = Si, Ge, Sn)). Two phosphazenyl groups can be joined either by the use of a difunctional halide or by oxidative coupling of organo-copper derivatives. The formation of the carbanions, the extent of deprotonation, substituent orientation, and the dependence of reactivity on ring size, are interpreted in terms of a balance between π-electron energies and electrostatic interactions.
Publisher
Canadian Science Publishing
Subject
Organic Chemistry,General Chemistry,Catalysis
Cited by
31 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献