Abstract
7-Bromostigmasteryl benzoate obtained by bromination with N-bromosuccinimide was converted to stigmastatrienyl benzoate by treatment with collidine or pyridine. Degradation of 7-pyridinium bromides of stigmasteryl benzoate and cholesteryl benzoate was also carried out. Substitution of 7α-bromocholesteryl benzoate and 7ξ-bromostigmasteryl benzoate with ammonium thiocyanate was also examined. (Received September 24, 1960)
