Base-Promoted (3 + 2) Cycloaddition of Trifluoroacetohydrazonoyl Chlorides with Imidates En Route to Trifluoromethyl-1,2,4-Triazoles
作者:Yue Zhang、Jun-Liang Zeng、Zhen Chen、Ren Wang
DOI:10.1021/acs.joc.2c01926
日期:2022.11.4
base-mediated (3 + 2) cycloaddition of trifluoroacetohydrazonoyl chlorides with imidates for the construction of 3-trifluoromethyl-1,2,4-triazoles has been described. This reaction is characterized by readily starting materials, simple reaction conditions, good yields, a broad substrate scope, and excellent regioselectivity. The utility of this protocol has been validated by the synthesis of a drug-like
已经描述了三氟乙酰肼酰氯与亚胺酸酯的碱介导 (3 + 2) 环加成反应,用于构建 3-三氟甲基-1,2,4-三唑。该反应具有原料易得、反应条件简单、产率高、底物范围广、区域选择性好等特点。该协议的实用性已通过类药物分子的合成得到验证。