Synthesis of α-Trifluoromethylthiolated and α-Thiocyanated Ketones Using Umpoled Enolates
作者:Xiaowen Xia、Bocheng Chen、Xiaojun Zeng、Bo Xu
DOI:10.1002/adsc.201800968
日期:2018.11.16
An efficient synthesis of α‐trifluoromethylthiolated and α‐thiocynated ketones via Umpolung strategy is developed. Umpoled enolates (N‐alkenoxypyridinium salts) react smoothly with readily available sulfur containing nucleophiles such as AgSCF3 and KSCN using CH3CN as the solvent. N‐alkenoxypyridinium salts could be easily prepared from the gold catalyzed addition of pyridine N‐oxide to alkynes. Our