7-Dehydrocholestene was exposed to sunlight with eosin in alcohol–benzene solution in the absence of oxygen. A product analogous to ergopinacone from ergosterol was obtained. Thus it was demonstrated that the carbon atom 3 or any group attached there does not take part in the photochemical dehydrogenation of ergosterol and its analogues.
在没有
氧气的情况下,将 7-脱氢胆烯与
乙醇苯溶液中的伊红一起暴露在阳光下。从
麦角甾醇获得了类似于麦角哌酮的产物。由此证明碳原子3或连接在那里的任何基团不参与
麦角甾醇及其类似物的光
化学脱氢。