The γ-butenolide obtained from an organocatalyzed, direct vinylogous aldol reaction of γ-crotonolactone and benzaldehyde serves as the key starting material in the expedient synthesis of a 3-hydroxy-2-phenyl piperidine intermediate which is converted to the target 2,3-disubstituted piperidines.
从γ-克罗通内酯和
苯甲醛的有机催化直接维尼洛格斯阿尔多尔反应中获得的
γ-丁内酯,作为合成目标2,3-二取代
吡啶的关键起始材料,经过高效合成得到3-羟基-2-苯基呱啶中间体。