An Aniline-Mediated Regioselective Synthesis of Quinoxalin-2-ones via the Condensation of α-Ketimine Esters with 2-Aminoanilines
作者:Huy Huynh、Selçuk Çalimsiz、Hilaire Wangun、Trevor Rainey、Teague McGinitie、Xiaoming Liao、Lizhi Yu
DOI:10.1055/s-0037-1609345
日期:2018.6
for the condensation of α-ketimine esters with 2-aminoanilines for the construction of quinoxalin-2-one derivatives is described. The substrate scope with 2-aminoaniline derivatives and different α-keto esters is explored with yields ranging from 44 to 90% and typical isolated regioselectivities between 6.4 to >25:1. A highly regioselective method for the condensation of α-ketimine esters with 2-aminoanilines
摘要 描述了一种高度区域选择性的方法,用于将α-酮亚胺酯与2-氨基苯胺缩合,用于构建喹喔啉-2-酮衍生物。探索了使用2-氨基苯胺衍生物和不同的α-酮酯的底物范围,产率范围为44%至90%,典型的区域选择性介于6.4至> 25:1之间。 描述了一种高度区域选择性的方法,用于将α-酮亚胺酯与2-氨基苯胺缩合,用于构建喹喔啉-2-酮衍生物。探索了使用2-氨基苯胺衍生物和不同的α-酮酯的底物范围,产率范围为44%至90%,典型的区域选择性介于6.4至> 25:1之间。