An effective synthesis of the 7-azaindole ring system has been developed from substituted 2-amino-3-vinyl pyridines. The methodology involves a novel cascade reaction sequence of controlled carbolithiation of the vinyl double bond, subsequent trapping of the intermediate organolithium with a suitable electrophile, followed by ring closure and dehydration.
由取代的2-
氨基-
3-乙烯基吡啶已开发出
7-氮杂吲哚环系统的有效合成方法。该方法涉及
乙烯基双键的受控
碳锂化的新型级联反应序列,随后用合适的亲电试剂捕获中间
有机锂,然后进行闭环和
脱水。