DIPAMP is a C2-symmetricdiphosphine. Each phosphorus centre, which is pyramidal, bears three different substituents - anisyl, phenyl, and the ethylene group. The ligand therefore exists as the enantiomeric (R,R) and (S,S) pair, as well as the achiral meso isomer.
DIPAMP was originally prepared by an oxidative coupling, starting from anisyl(phenyl)(methyl)phosphine.
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