Hybrid P-chiral diphosphines for asymmetric hydrogenation

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Duncan Carmichael, Henri Doucet and John M. Brown


Abstract

A family of diphosphine ligands has been prepared by Michael addition of o-anisylphenyl phosphide to diethyl vinylphosphonate and elaboration to phospholanes based on hexane-2,5-diol or mannitol; some preliminary results of Rh-complex catalysed hydrogenations are reported.


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