Chem. Abstr., 54, 6812c (1960). E. Fernholz and WL Ruigh, J. Amer. Chem. SOC., 62, 2341 (1940). or-Spinasterol. A. Rh-Catalyzed Reaction.*-7-Dehydrostigmastery1 acetate (25 g) in 1200 ml of 3: 1 benzene-ethanol was hydrogenated at room temperature and 1 atm pressure over 1.6 g of tris (tripheny1phosphine) chlororhodium (Strem Chemical Co.) for 18 hr. Solvent was evaporated, the dry residue was extracted with petroleum ether and ...
