Synthesis of a perfluoroalkylbromide by photochemical bromination of the corresponding iodide.

摘要

The invention relates to the preparation of a perfluoroalkyl bromide RFBr by photochemical bromination of the corresponding iodide RFI in solution in an inert solvent. The bromination is initiated by homolytic cleavage of the C-I bond of the RFI compound, in the presence of bromine. For this, use is made of a specific radiation lamp, such as a lamp possessing an XeCl<*> or I2<*> excimer.