Convenient Synthesis of 4-Alkyl, Alkenyl, and Alkynyl Substituted N-(Phenylsulfonyl)indoles.
作者:Hiroyuki ISHIBASHI、Susumu AKAMATSU、Hiroko IRIYAMA、Masazumi IKEDA
DOI:10.1248/cpb.42.2150
日期:——
The indolone 1 reacted with organomagnesium or lithium reagents to give the carbinols 6 and 10, which, upon treatment under appropriate acidic conditions or neutral thermal conditions, gave the 1-phenylsulfonylindoles 8 and 11 bearing various kinds of alkyl, alkenyl, and alkynyl substituents at the 4-position. The indolone 1 was also converted to the 4-cyanoindole 14 via the cyanohydrin O-trimethylsilyl ether 13.
吲哚酮 1 与有机镁试剂或锂试剂反应后,可得到卡宾醇 6 和 10,在适当的酸性条件或中性热条件下处理后,可得到在 4 位上带有各种烷基、烯基和炔基取代基的 1-苯基磺酰基吲哚 8 和 11。吲哚酮 1 还可以通过氰醇 O-三甲基硅醚 13 转化为 4-氰基吲哚 14。