Abstract
The title compound, BINAP oxide, C44H32O2P2, (I), was synthesized by direct oxidation of (R)-(+)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (BINAP) with tert-butyl hydroperoxide in toluene solution. The angle between the naphthyl planes of the binaphthyl group is 94.17 (3)°.
