BiPhePhos is an organophosphorus compound that is used as a ligand in homogeneous catalysis.

Classified as a diphosphite, BiPhePhos is derived from three 2,2'-biphenol groups, which constrain its shape in such a way to confer high selectivity to derived catalysts.

[1] Originally described by workers at Union Carbide,[2] it has become a standard ligand in hydroformylation.

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