Isoxazoles as latent α-cyanoaldehydes: Construction of the indolo[2,3-a]quinolizine ring system
作者:Caroline Perez、Yves L. Janin、David S. Grierson
DOI:10.1016/0040-4020(95)00931-0
日期:1996.1
A new access to the indolo[2,3-a]quinolizine ring system was devised using the thermal decarboxylative ring-opening of 3-carboxyl isoxazoles into α-cyano aldehydes. Thus, from acetal 8b the indolo[2,3-a]quinolizine 5 was obtained in four steps via the β-carboline 11 which on heating gave compound 5.
利用3-羧基异恶唑的热脱羧开环成α-氰基醛,设计了一种新的吲哚[2,3-a]喹啉嗪环系统。因此,从乙缩醛8b经由β-咔啉11经四个步骤获得吲哚并[2,3-a]喹啉嗪5,该β-咔啉在加热时得到化合物5。