Synthesis of Polysubstituted Trifluoromethylpyridines from Trifluoromethyl-α,β<i>-</i>ynones
作者:Tianyu Yang、Zhoubin Deng、Ke-Hu Wang、Pengfei Li、Danfeng Huang、Yingpeng Su、Yulai Hu
DOI:10.1021/acs.joc.9b02873
日期:2020.1.17
trifluoromethylpyridine derivatives by the Bohlmann-Rahtz heteroannulation reaction is described, which use trifluoromethyl-α,β-ynones as trifluoromethyl building blocks to react with β-enamino esters or β-enamino ketones in the presence of ZnBr2 to form the trifluoromethylpyridine derivatives in good yields. The protocol has the advantages of readily available starting materials, mild reaction conditions, and