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Axially Dissymmetric Bis(triaryl)phosphines in the Biphenyl series: Synthesis of (6,6-dimethylbiphenyl-2,2-diyl)bis(diphenylphosphine) (BIPHEMP) and analogues, and their use in Rh(I)-catalyzed asymmetric isomerizations of N,N-diethylnerylamine
Rudolf Schmid *, Marco Cereghetti, Bernd Heiser, Peter Schönholzer, Hans-Jürgen Hansen
Helvetica Chimica Acta, Volume 71 Issue 4, Pages 897 - 929
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http://dx.doi.org/10.1002/hlca.19880710427
