A General and Practical Access to Chiral Quinoxalinones with Low Copper-Catalyst Loading
作者:Shinji Tanimori、Hiroaki Kashiwagi、Takeshi Nishimura、Mitsunori Kirihata
DOI:10.1002/adsc.201000323
日期:2010.10.4
A general, straightforward, and practical access to multi-substituted chiral quinoxalin-2-ones has been achieved based on the copper(I) chloride-dimethylethylenediamine (DMEDA) catalyst system. With the use of 1 mol% copper(I) chloride, structurally diverse quinoxalin-2-ones were generated with high optical purity from readily available starting materials, 2-haloanilines and α-amino acids, in a one-pot
基于氯化铜(I)-二甲基乙二胺(DMEDA)催化剂体系,已实现了对多取代手性喹喔啉-2-酮的一般,直接和实用的获取。使用1摩尔%的氯化铜(I),可以通过一锅法从容易获得的起始原料2-卤代苯胺和α-氨基酸生成具有高光学纯度的结构多样的喹喔啉-2-酮。