我们在这里报告通过噻唑并[3,2- a ]苯并咪唑鎓或苯并咪唑并[2,1- b ] [1,3]苯并噻唑的开环合成高度官能化的1,3-二氢-2H-苯并咪唑-2-酮-6-ium盐和醇盐异常的C–O键裂解。以高收率获得了多种带有原始N-硫代烯基或N-(邻硫代)芳基的苯并咪唑酮。先进的化学方法可快速有效地访问特权的苯并咪唑-2-酮骨架。
我们在这里报告通过噻唑并[3,2- a ]苯并咪唑鎓或苯并咪唑并[2,1- b ] [1,3]苯并噻唑的开环合成高度官能化的1,3-二氢-2H-苯并咪唑-2-酮-6-ium盐和醇盐异常的C–O键裂解。以高收率获得了多种带有原始N-硫代烯基或N-(邻硫代)芳基的苯并咪唑酮。先进的化学方法可快速有效地访问特权的苯并咪唑-2-酮骨架。
Copper-Catalyzed Synthesis of N-Fused Heterocycles through Regioselective 1,2-Aminothiolation of 1,1-Dibromoalkenes
作者:Hui Xu、Yin Zhang、Jianqiang Huang、Wanzhi Chen
DOI:10.1021/ol101563f
日期:2010.8.20
The first aminothiolation of 1,1-dibromoalkene is described using an inexpensive copper/N,N-dimethylethylenediamine catalyst. The method provides a powerful means of using easily available 1,1-dihaloalkenes as precursors to fused heterocycles.
Access to <i>N</i>-Thioalkenyl and <i>N</i>-(<i>o</i>-Thio)aryl-benzimidazol-2-ones by Ring Opening of Thiazolobenzimidazolium and Benzimidazobenzothiazolium Salts and C–O Bond Cleavage of an Alkoxide
We report herein the synthesis of highly functionalized 1,3-dihydro-2H-benzimidazol-2-ones via a ringopening of thiazolo[3,2-a]benzimidazolium or benzimidazo[2,1-b][1,3]benzothiazol-6-ium salts and an unusual C–O bondcleavage of an alkoxide. A large variety of benzimidazolones bearing an original N-thioalkenyl or N-(o-thio)aryl group was obtained in high yields. The developed chemistry provides efficient
我们在这里报告通过噻唑并[3,2- a ]苯并咪唑鎓或苯并咪唑并[2,1- b ] [1,3]苯并噻唑的开环合成高度官能化的1,3-二氢-2H-苯并咪唑-2-酮-6-ium盐和醇盐异常的C–O键裂解。以高收率获得了多种带有原始N-硫代烯基或N-(邻硫代)芳基的苯并咪唑酮。先进的化学方法可快速有效地访问特权的苯并咪唑-2-酮骨架。