An Efficient Synthetic Route for Pyrrolizinone Synthesis through Functionalized C-Alkylpyrroles
作者:Canan Unaleroglu、Dilek Tasgin、Sertan Aytac、Baris Temelli
DOI:10.1055/s-0029-1216951
日期:2009.10
Regioselective addition of pyrrole to methyl 3-aryl-2-cyanoacrylates was achieved, in high yields, with copper(II) triflate as the catalyst in toluene. C-Alkylated pyrroles afforded novel pyrrolizin-3-ones, in good to high yields and high diastereomeric ratio by an intramolecular cyclization reaction under mild reaction conditions.
在甲苯中,以铜(II)三氟甲磺酸盐作为催化剂,成功实现了吡咯对甲基3-芳基-2-氰基丙烯酸酯的区域选择性加成,产率较高。C-烷基化的吡咯通过温和反应条件下的分子内环化反应,获得了新型吡咯杂环-3-酮,产率良好至较高且具有高的立体异构体比。