Synthesis of β-CF3 Ketones through Copper/Silver Cocatalyzed Oxidative Coupling of Enol Acetates with ICH2CF3
作者:Wei Deng、Jiannan Xiang、Niannian Yi、Yi Xiong、De Chen、Sheng Zeng、Chaozhihui Cheng、Pengjie Wang
DOI:10.1055/s-0037-1610257
日期:2018.10
A simple method for the synthesis of β-CF3 ketones through copper/silver cocatalyzed oxidative coupling of enol acetates with ICH2CF3 has been developed. Enol acetates were chosen as the source of carbonyl group, giving the β-CF3 ketones in moderate yields. Control experiments imply that a radical process maybe involved in this reaction.
Base-Promoted Double-Bond-Migration/Hydrolysis/Isomerization of 4-Aryl-1,1,1-trifluorobut-2-en-2-yl Trifluoromethanesulfonates: A Metal-Free Approach to β-Trifluoromethyl Ketones
A metal‐free synthesis of 1‐aryl‐4,4,4‐trifluoromethylbutanones has been developed. Promoted by DBU, 4‐aryl‐1,1,1‐trifluorobut‐2‐en‐2‐yl trifluoromethanesulfonates were converted into 1‐aryl‐4,4,4‐trifluoromethylbutanones smoothly in moderate to excellent yields.