syntheses of pyrrolidine, piperidine, pyrrolizidine and indolizidine skeletons were accomplished by nickel-catalyzed cyclization of 1,3-diene and aldehyde in a chain. A formal total synthesis of an Elaeocarpus alkaloid, (−)-Elaeokanine C, in the naturally occurring form was achieved using this cyclization.
吡咯烷,
哌啶,
吡咯嗪烷和
吲哚唑烷骨架的立体选择性合成是通过
镍催化的链中1,3-二烯和醛的环化反应完成的。使用该环化作用,可以自然形式形成Elaeocarpus
生物碱(-)-Elaeokanine C的正式全合成。