Triphenylphosphine → HCID 67508166, compound

Participants

Reaction Steps

To a stirred suspension of 2.67 g (15.0 mmol) N-bromosuccinimide in 18 ml dry dichloromethane, a solution of 3.93 g (15.0 mmol) triphenylphosphine in 18 ml dry dichloromethane is added dropwise at 10° C. After 5 min, 1.72 g (6.0 mmol) 16β-hydroxy-3-methoxy-estra-1,3,5(10)-triene are added and the mixture is stirred at room temperature for 2 h. After column chromatography of the reaction product on silica gel (60 g) using 300 ml of dichloromethane, the target compound is obtained in the form of colorless crystals.

Provenance & Evidence