Synthesis of phthalan and phenethylamine derivatives via addition of alcohols to rhodium(II)-azavinyl carbenoids
作者:John M. Bennett、Jonathan D. Shapiro、Krystina N. Choinski、Yingbin Mei、Sky M. Aulita、Eric W. Reinheimer、Max M. Majireck
DOI:10.1016/j.tetlet.2017.01.105
日期:2017.3
1-Sulfonyl-1,2,3-triazoles undergo inter- and intramolecular 1,3-OH insertion with rhodium(II)-azavinyl carbenoid intermediates upon treatment with a rhodium(II) catalyst. Products of this transformation contain a synthetically versatile N-(2-alkoxyvinyl)sulfonamide, enabling divergent reactivity toward several N-protected phenethylamine derivatives under various conditions. Notably, products with
在用铑(II)催化剂处理后,1-磺酰基-1,2,3-三唑与铑(II)-氮杂乙烯基类胡萝卜素中间体发生分子间和分子内1,3-OH插入。该转化的产物包含合成上通用的N-(2-烷氧基乙烯基)磺酰胺,使得在不同条件下对几种N-保护的苯乙胺衍生物具有不同的反应性。值得注意的是,具有邻苯二甲酸骨架的产品可以直接从带有侧链醇的4-芳基-1-磺酰基-1,2,3-三唑中获得。