Collect. Czech. Chem. Commun. 2002, 67, 1320-1324

A Simple Method for Preparing Difluorodiiodomethane from Difluoro(fluorosulfonyl)acetyl Fluoride

Ji-Chang Xiao, Jian-Xin Duan, An-Rong Li, Yong Guo and Qing-Yun Chen*

Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, PR China


Difluorodiiodomethane is prepared in 60% yield by the reaction of difluoro(fluorosulfonyl)acetyl fluoride with I2/KI in the presence of a catalytic amount of SiO2 in acetonitrile at 60-65 °C.

Keywords: Difluorodiiodomethane; Difluoro(fluorosulfonyl)acetyl fluoride; Silica gel; Iodine; Potassium iodide; Iodination.

References: 25 live references.