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7860141 
Journal Article 
COPPER ELECTRON-TRANSFER INDUCED TRIFLUOROMETHYLATION WITH METHYL FLUOROSULPHONYLDIFLUOROACETATE 
Chen, QY; Yang, GY; Wu, SW 
1991 
Yes 
Journal of Fluorine Chemistry
ISSN: 0022-1139
EISSN: 1873-3328 
55 
3 
291-298 
English 
WOS:A1991HM82600008 
Treatment of halogen compounds, RX, with methyl fluorosulfonyldifluoroacetate and copper powder in dimethylformamide for 4 h at 65-80 °C resulted in the corresponding trifluoromethylated products, RCF3, in good yield. In the absence of halogen compounds and at 100 °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 trhquoromethylating system. © 1991. 
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