C6H5IO2 in KOH/MeOH yields 2 α-carbomethoxy-A-norcholestane (2). This result is interpreted on mechanistic grounds and compared with the course of the reaction with other sterically hindered ketones such as friedelin, 3-keto, 12-keto, 17-keto steroids, and 2,2,6,6-tetramethyl-4-piperidone.
用C 6 H 5 I(OAc)2或邻-OIC 6 H 4 COOH或C 6 H 5 IO 2在KOH / MeOH中氧化3-胆甾烷酮(2)。从机械原理上解释了该结果,并与与其他空间受阻的酮(如Friedelin,3-酮,12-酮,17-
酮类固醇和2,2,6,6-四甲基-
4-哌啶酮。