作者:Yuji Miyahara、Kenta Goto、Takahiko Inazu
DOI:10.1055/s-2001-11427
日期:——
Bispidine 1a is conveniently synthesized via a route involving double Mannich reaction of 1-allylpiperidin-4-one to N,N′-diallylbispidinone, Wolff-Kishner reduction of the bispidinone, and deallylation of the resulting N,N′-diallylbispidine by treatment with ethyl chloroformate in the presence of NaI, followed by alkaline hydrolysis.
双脒 1a 可通过以下途径方便地合成:1-烯丙基哌啶-4-酮与 N,N′-二烯丙基双脒酮发生双曼尼希反应,双脒酮发生沃尔夫-基什内尔还原反应,生成的 N,N′-二烯丙基双脒在 NaI 存在下用氯甲酸乙酯进行脱烯丙基反应,然后进行碱性水解。