Reactivity of Iminophosphoranes. Formation of the Piperazine Ring
Resource
Journal of the Chinese Chemical Society 42 (3): 543-546
Journal
Journal of the Chinese Chemical Society
Pages
543-546
Date Issued
1995
Date
1995
Abstract
Reaction of 3‐azidopropyl methanesulfonate with triphenylphosphine produced the 1,4‐bis(triphenyl‐phosphino)piperazine 5 by intermolecular cyclization, instead of formation azidine derivatives by an intramolecular pathway. Structural formulation of 5 was achieved by both spectral and X‐ray crystal analysis. Hydrolysis of 5 under basic condition gives piperazine, whereas reaction of lithium diphenylphosphide with 5 produced 1,2‐bis(diphenyl‐phosphino)ethane (dppe) exclusively. Copyright © 1995 The Chemical Society Located in Taipei & Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim, Germany
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Type
journal article
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