Bifunctional Furfuryl Cations Strategy: Three-Component Synthesis of Enamidyl Triazoles
作者:Hengtuo Yang、Jing Gou、Jiawei Guo、Dongyu Duan、Yu-Ming Zhao、Binxun Yu、Ziwei Gao
DOI:10.1002/chem.201504330
日期:2016.1.4
A new multicomponent synthesis of functionalized enamidyl triazoles starting from simple and readily available starting materials is described. A simple treatment of a dichloromethane solution of an azide, amine, and 5‐bromo‐2‐furylcarbinol with a Lewis acid provides the enamidyl triazole in good to high yield. A triple domino sequence, formal [3+2] cycloaddition/ring‐opening/amidation, is involved
描述了一种从简单易得的起始原料开始的功能化的烯丙基三唑的新的多组分合成。用路易斯酸对叠氮化物,胺和5-溴-2-呋喃基甲醇的二氯甲烷溶液进行简单处理,即可得到高至高收率的ena酰胺基三唑。这个新的骨架生成反应涉及到三重多米诺序列,即正式的[3 + 2]环加成/开环/酰胺化。