consequence of an asymmetric destruction of the racemic compounds resulting in the formation of the corresponding 1-benzylated isoquinolines. The highest selectivity has been achieved using quaternary cinchona alkaloids as phase-transfer catalysts. The resolution of a number of racemic 1-benzylated Reissert compounds reveals a significant substrate dependence and a proposal for the mechanism of the reaction
提出了在有机催化双相条件下外消旋的1-
苄基Reissert化合物的对映体富集。富集是外消旋化合物的不对称破坏的结果,导致相应的1-
苄基化的
异喹啉的形成。使用季
金鸡纳
生物碱作为相转移
催化剂已经实现了最高的选择性。许多外消旋的1-
苄基Reissert化合物的拆分显示出显着的底物依赖性,并提出了反应机理的建议。