SCHEDULED MAINTENANCE
Difluorocarbene precusors 2, FSO2CF2COF, FSO2CF2CO2H, FSO2CF2CO2Me and XCF2CO2M react with Kl to give HCF2l 1 in high yields; a smooth reaction of 1 with alkenes or alkynes in the presence of Na2S2O4 gives the difluoromethylated adducts in good yields.
P. Cao, J. Duan and Q. Chen, J. Chem. Soc., Chem. Commun., 1994, 737 DOI: 10.1039/C39940000737
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