Stereoconvergent, Redox‐Neutral Access to Tetrahydroquinoxalines through Relay Epoxide Opening/Amination of Alcohols
作者:Guangda Xu、Guoqiang Yang、Yue Wang、Pan‐Lin Shao、Jia Ning Nicolette Yau、Bing Liu、Yunbo Zhao、Ye Sun、Xinxin Xie、Shuo Wang、Yao Zhang、Lixin Xia、Yu Zhao
DOI:10.1002/anie.201906199
日期:2019.10
terminal epoxides into valuable 1,2,3,4-tetrahydroquinoxalines in a highly enantioselective fashion. This procedure operates through relay zinc and iridium catalysis, and achieves redox-neutral and stereoconvergent production of valuable chiral heterocycles from racemic starting materials with water as the only side product. The use of commercially available reagents and catalysts and a convenient procedure
我们提出了一种经济的催化程序,以高度对映选择性的方式将容易获得的1,2-二氨基苯和末端环氧化物转化为有价值的1,2,3,4-四氢喹喔啉。该过程通过中继锌和铱催化而进行,并从外消旋起始原料中以水为唯一副产物,实现了氧化还原中性和立体收敛性生产有价值的手性杂环。使用可商购的试剂和催化剂以及方便的程序也使该催化方法对实际应用具有吸引力。