Rhodium(I)‐Catalyzed Regioselective Azide‐internal Alkynyl Trifluoromethyl Sulfide Cycloaddition and Azide‐internal Thioalkyne Cycloaddition under Mild Conditions
作者:Wangze Song、Nan Zheng、Ming Li、Junnan He、Junhao Li、Kun Dong、Karim Ullah、Yubin Zheng
DOI:10.1002/adsc.201801216
日期:2019.2
A regioselective method to access fully substituted 5‐trifluoromethylthio‐1,2,3‐triazoles and 5‐thio‐1,2,3‐triazoles from the internal alkynyl trifluoromethyl sulfides and internal thioalkynes by a rhodium(I)‐catalyzed azide‐alkyne cycloaddition (RhAAC) reaction under mild conditions has been developed. This approach features good compatibility with water and air, a broad substrate scope, good functional
一种区域选择性方法,可通过铑(I)催化的叠氮化物-炔烃从内部炔基三氟甲基硫化物和内部硫代炔烃中获得完全取代的5-三氟甲基硫代1,2,3-三唑和5-硫代1,2,3-三唑已经开发了在温和条件下的环加成反应(RhAAC)。该方法具有与水和空气的良好相容性,广泛的底物范围,良好的官能团耐受性,高收率和出色的区域选择性。1,5-区域的高选择性是由硫原子和π-酸性铑之间的强配位控制的。该方法的优势还包括其可用于克级制备,固相合成技术的使用以及相互正交的CuAAC-RhAAC反应。