PROCESS FOR THE PREPARATION OF 3- /3BETA 17BETA-DIHYDROXYANDROST-5- EN-17ALPHA-YL/ PROPIONIC ACID YPSILON-LACTONE AND INTERMEDIATES FORMED THEREIN

摘要

1365437 Nickel borides G D SEARLE & CO 1 Aug 1972 [6 Aug 1971] 35793/72 Heading C1A [Also in Division C2] A nickel boride catalyst is prepared in Examples 5B and 5C by addition of sodium borohydride in water to a mixture of nickel chloride hexahydrate and small amount of chromium chloride hexahydrate in methanol and water.