Process for preparing perfluoroalkyl bromides

摘要

PCT No. PCT/JP93/01738 Sec. 371 Date Oct. 24, 1995 Sec. 102(e) Date Oct. 24, 1995 PCT Filed Nov. 30, 1993 PCT Pub. No. WO94/12453 PCT Pub. Date Jun. 9, 1994The present invention provides a process for preparing a perfluoroalkyl bromide characterized by reacting a perfluoroalkyl iodide represented by the formula CnF2n+1I wherein n is an integer of 6 to 10 with bromine in a light-transmitting reactor with exposure to light and heating at 120 DEG to 180 DEG C. while simultaneously removing IBr resulting as a by-product by separation of a layer.