Methylenetriphenylphosphorane → 17-Cyclopropylmethyl-3-hydroxy-6-methylene-morphinan

Participants

Reaction Steps

Reaction of 17-cyclopropylmethyl-3-hydroxy-morphinan-6-one (1.58 g, 5 mmole) with methylenetriphenylphosphorane (20 mmole) in dimethyl sulfoxide gave a crude residue which was chromatographed using 10:1 chloroform-methanol containing 1% concentrated ammonium hydroxide. Pure fractions were pooled to give 909 mg (58%) of TR-5609 which crystallized from ethanol to give 532 mg of analytically pure TR-5609, mp 220°-223°.

Provenance & Evidence