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Isolation and structural characterisation of two sterically crowded diphosphanes

Lookup NU author(s): Dr Keith Izod, Professor William Clegg

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Abstract

Under specific conditions the reduction of the chlorophosphanes R(Me2NCH2-2-C6H4)PCI or RPCl2 [R = (Me3Si)(2)CH] with LiAlH4 gives the diphosphanes {R(Me2NCH2-2-C6H4)P}(2) (2) and RPH-PHR (3), respectively in moderate to good yields. Compound 2 may be obtained in higher yield from the reaction of {R(Me2NCH2-2-C6H4)P}Li with PbI2. Compounds 2 and 3 have been characterised by multi-element NMR spectroscopy and the meso-diastereomers of both compounds have been characterised by X-ray crystallography. In the solid state both meso-2 and meso-3 adopt an antiperiplanar conformation. (C) 2002 Elsevier Science B.V. All rights reserved.

Publication metadata

Author(s): Blair S, Izod K, Taylor R, Clegg W

Publication type: Article

Publication status: Published

Journal: Journal of Organometallic Chemistry

Year: 2002

Volume: 656

Issue: 1-2

Pages: 43-48

ISSN (print): 0022-328X

ISSN (electronic): 1872-8561

Publisher: Elsevier S.A.

URL: http://dx.doi.org/10.1016/S0022-328X(02)01434-1

DOI: 10.1016/S0022-328X(02)01434-1

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