The first example of the Castagnoli-Cushman reaction of homophthalic acid with an amine and an aldehyde conducted in a three-component format is reported. This new protocol employs no dehydrating agents and, unlike the traditional Castagnoli-Cushman reaction of homophthalic anhydride, allows simultaneous mixing of all three reagents and provides good to excellent yields of trans-configured tetrahydroisoquinolonic
                                    报道了以三组分形式进行的高
邻苯二甲酸与胺和醛的Castagnoli-Cushman反应的第一个实例。该新方案不使用脱
水剂,并且与传统的
邻苯二甲酸酐的Castagnoli-Cushman反应不同,它允许同时混合所有三种试剂,并提供反式构型的
四氢异喹啉酸的良好或极佳的收率。