作者:Kazuhiko Hayashi、Eiko Kujime、Hajime Katayama、Shigeki Sano、Motoo Shiro、Yoshimitsu Nagao
DOI:10.1248/cpb.57.1142
日期:——
The effective formation of 1-azabicyclo[3.1.0]hexane (5) by treatment of 2-(bromomethyl)pyrrolidine hydrobromide (4) with n-BuLi was established, with the reaction occurring by a rational reaction pathway via the open chain transition state 8 based on intermolecular Br...Li(+) coordination (SN2 process). The reaction of 5 with electrophiles 13a-n gave the corresponding pyrrolidines 14a-n and piperidine
通过用正丁基锂处理2-(溴甲基)吡咯烷氢溴酸盐(4),建立了有效形成1-氮杂双环[3.1.0]己烷(5)的反应,该反应通过开链过渡通过合理的反应途径发生分子间的Br ... Li(+)配位(SN2过程)基于状态8。5与亲电试剂13a-n的反应得到相应的吡咯烷14a-n和哌啶6、15a-g in。该反应中产物的选择性似乎由平衡控制。