A new synthetic route to tropane alkaloids based on [4 + 2] nitroso cycloaddition to 1,3-cycloheptadienes
作者:Hideo Iida、Yohya Watanabe、Chihiro Kibayashi
DOI:10.1021/jo00211a006
日期:1985.5
A new synthetic route to tropane alkaloids. Pseudotropine and tropacocaine
作者:Hideo Iida、Yohya Watanabe、Chihiro Kibayashi
DOI:10.1016/s0040-4039(01)91127-x
日期:1984.1
Pseudotropine and tropacocaine have been synthesized by a facile route involving the [4 + 2] nitroso cycloaddition followed by internal SN2 displacement.
伪品托品和托卡卡因已通过一种简便的方法合成,该方法涉及[4 + 2]亚硝基环加成,然后内部进行S N 2置换。
Synthesis of 1,3-Cycloalkadienes from Cycloalkenes: Unprecedented Reactivity of Oxoammonium Salts
Few methods allow for the direct conversion of cycloalkenes into cycloalkadienes with high chemo‐ and regioselectivity. Herein, we report a convenient one‐pot process for this transformation that involves the unprecedented N‐preferential group transfer of N‐oxoammonium salts to cycloalkenes, followed by Cope elimination, to afford cycloalkadienes at room temperature and pressure.