Interrupting the Barton–McCombie Reaction: Aqueous Deoxygenative Trifluoromethylation of <i>O</i>-Alkyl Thiocarbonates
作者:Zhi-Yun Liu、Silas P. Cook
DOI:10.1021/acs.orglett.0c04039
日期:2021.2.5
The site-selective trifluoromethylation of aliphatic systems remains an important challenge. This work describes a light-driven, copper-mediated trifluoromethylation of O-alkyl thiocarbonates. The reaction provides broad functional group tolerance (e.g., alkyne, alkene, phenol, free alcohol, electron-rich and -deficient arenes), thereby offering orthogonality and practicality for trifluoromethylation
脂肪族系统的位点选择性三氟甲基化仍然是一个重要的挑战。这项工作描述了O-烷基硫代碳酸酯的光驱动、铜介导的三氟甲基化。该反应提供了广泛的官能团耐受性(例如,炔烃、烯烃、苯酚、游离醇、富电子和缺电子芳烃),从而为三氟甲基化提供正交性和实用性。提出了一种自由基有机金属机理。