Methyl fluorosulphonyldifluoroacetate; a new trifluoromethylating agent
作者:Qing-Yun Chen、Sheng-Wen Wu
DOI:10.1039/c39890000705
日期:——
Methylfluorosulphonyldifluoroacetate, in the presence of copper(I) iodide, is used as the source of trifluoromethyl group which replaces the halogen in aryl, alkenyl, and alkyl halides.
CHEN QING-YUN; YANG ZHEN-YU, ACTA CHIM. SIN. ENGL. ED.,(1985) N 4, 362-368
作者:CHEN QING-YUN、 YANG ZHEN-YU
DOI:——
日期:——
Copper electron-transfer induced trifluoromethylation with methyl fluorosulphonyldifluoroacetate
作者:Qing-Yun Chen、Guo-Ying Yang、Sheng-Wen Wu
DOI:10.1016/s0022-1139(00)82357-x
日期:1991.12
Treatment of halogen compounds, RX, with methyl fluorosulfonyldifluoroacetate and copper powder in dimethylformamide for 4 h at 65-80-degrees-C resulted in the corresponding trifluoromethylated products, RCF3, in good yield. In the absence of halogen compounds and at 100-degrees-C, methyl triflone (CF3SO2CH3) was synthesized readily in 20-30% yield from the same reaction system. The fact that the reaction was suppressed by oxygen, p-dinitrobenzene or in darkness suggested that a copper-induced electron-transfer process was involved in this new trifluoromethylating system.