Herein, we report an efficient strategy for the rapid construction of 1,4-oxazines starting from simple α-amino ketones and diazo pyruvates under mild reaction conditions. This transformation is efficiently catalyzed by RuCl3 through a tandem N–H insertion/cyclization sequence via an enol formation. This reaction shows broad functional group tolerance, and the resulting 1,4-oxazine products show promising
本文中,我们报告了在温和的反应条件下,从简单的α-
氨基酮和重氮
丙酮酸开始快速构建1,4-恶嗪的有效策略。RuCl 3通过一串N–H插入/环化序列(通过烯醇形成)有效地催化了这种转变。该反应显示出广泛的官能团耐受性,并且所得的1,4-恶嗪产物显示出对HCT116的有希望的抗癌活性。