A new optically active secondary diphosphine—its use for the improved synthesis of ( R, R)-1,2-bis(boranato( tert-butyl)methylphosphino)ethane

( S, S)-1,2-Bis(boranato( tert-butyl)phosphino)ethane has been synthesized efficiently and in excellent enantioselectivity. This secondary diphosphine serves as the starting material for an elegant preparation of ( R, R)-1,2-bis(boranato( tert-butyl)methylphosphino)ethane, known as ( R, R)- t-Bu-Bis...

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Bibliographic Details
Published in:Tetrahedron letters 2002-10, Vol.43 (43), p.7735-7737
Main Authors: Crépy, Karen V.L, Imamoto, Tsuneo
Format: Article
Language:English
Subjects:
alkylation
C2-symmetric
counter-enantiomer
oxidative coupling
phosphine ligand
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Summary:( S, S)-1,2-Bis(boranato( tert-butyl)phosphino)ethane has been synthesized efficiently and in excellent enantioselectivity. This secondary diphosphine serves as the starting material for an elegant preparation of ( R, R)-1,2-bis(boranato( tert-butyl)methylphosphino)ethane, known as ( R, R)- t-Bu-BisP*–borane. Graphic
ISSN:0040-4039
1873-3581
DOI:10.1016/S0040-4039(02)01829-4