One-pot synthesis of <i>trans</i>-<font>β</font>-lactams from ferrocenylketene generated by thermal Wolff rearrangement
作者:Mingshun Liu、Jian’an Wang、Xiaoxi Yuan、Rong Jiang、Nanyan Fu
DOI:10.1080/00397911.2017.1378358
日期:2017.12.17
ABSTRACT A series of β-lactams containing the ferrocene moiety were synthesized through the Staudinger reaction between ferrocenylketene generated by the thermal Wolff rearrangement of the corresponding diazo ketone and various imines. The stereochemical outcome has been investigated and the trans-products were isolated as the main products, opposite to the reported results by Bonini and coworkers
摘要 通过相应重氮酮的热沃尔夫重排产生的二茂铁基烯酮与各种亚胺之间的施陶丁格反应合成了一系列含有二茂铁部分的β-内酰胺。立体化学结果已被研究,反式产物作为主要产物被分离出来,这与 Bonini 和同事报告的结果相反。(±)-trans-1,4-diphenyl-3-ferrocenylazetidin-2-one (3c) 的绝对构型通过 X 射线分析确定。从反应机理的角度讨论立体选择性。图形概要