Oxidation of solanidine and some of its derivatives with mercury(II) acetate in acetone afforded corresponding N-22 immonium perchlorates or 22(23)-enamines. It has been found that the effect of solvents on regioselectivity e.g. formation N-22 and N-16 immonium salts, was remarkable. The isomerisation of 22(23)-enamines into corresponding 20(22)-enamines, potentialy important intermediates in planned chemical degradation of solanidine to steroidal hormones, was performed in 0.1% acetic acid in ether, or in dichloromethane (chloroform).
在丙酮中,用醋酸汞氧化茄碱和其一些衍生物,得到相应的N-22免疫过氯酸盐或22(23)-烯胺。发现溶剂对区域选择性,如形成N-22和N-16免疫盐的影响是显着的。22(23)-烯胺异构化为相应的20(22)-烯胺,可能是计划化学降解茄碱为类固醇激素的重要中间体,在0.1%乙酸醚或二氯甲烷(氯仿)中进行。