Iodination of thebaine and synthesis of 9-substituted indolinocodeinone derivatives
作者:R. M. Allen、G. W. Kirby
DOI:10.1039/p19730000363
日期:——
Iodination of thebaine in methanol, with or without silver salt catalysis, gives, in good yield, 7β-iodoneopinone dimethyl acetal, which reacts with a-wide variety of nucleophiles to provide indolinocodeinone derivatives carrying the following 9α-substituents: OH, OMe, ONO, OAc, NC, N3, NMe2, CN, and SCN. 9,10-Didehydroindolinocodeinone dimethyl acetal and 9α-chloroindolinocodeinone have also been
甲醇中的蒂巴因的碘化反应,无论有无银盐催化,均能以良好的收率得到7β-碘烯酮二甲基乙缩醛,该缩醛可与多种亲核试剂反应,提供带有以下9α-取代基的吲哚可待因酮衍生物:OH,OMe,ONO ,OAc,NC,N 3,NMe 2,CN和SCN。还制备了9,10-二氢吲哚可待因酮二甲基乙缩醛和9α-氯吲哚可待因酮。用高氯酸银在苯中处理碘缩醛或14-溴代可待因酮二甲基乙缩醛得到叠氮鎓盐,该叠氮鎓盐被认为是两个卤代-缩醛的溶剂重排反应的中间体。