A New Type of Anionic Rearrangement in Metalated Benzylhydrazines

Abstract

Metalation of N,N‐dibenzyl‐N′‐(trimethylsilyl)hydrazine with organyllithium and ‐magnesium compounds led to the migration of the benzyl group, and the deprotonation of Si−Me groups was observed. The syntheses and crystal structures of Bzl2N−NH2, [Bzl(Li)N−N(SiMe3)Bzl]2, and [Mg[BzlN−N(SiMe2CH2)Bzl]2 are presented. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)