CFsSOzOCHzCF3 89-91 (740) 1, 3037 CFsSOzOCHzCFzCF3 10% 105 (740) 1.3012 CFaSOzOCHz (CF2) zCFa 118-120 (730) 1.3020 CFsSOzOCHzCFzCFzH 122-125 (737) 1.3203 CFsCFzSOzOCHzCF3 105-106 (740) 1.3028 esters of perfluoroalkanesulfonic acids, first described by Brown2 and Brice and Trott3 are very reactive alkylating agents. For example, methyl or ethyl trifluoromethanesulfonate will alkylate benzene if a mixture of the ...