| abstract |
WHEREIN Rf represents perfluoroalkyl radical with 4 to 14 carbon atoms, R represents hydrogen or fluorine, R1 represents an ethyleneically unsaturated hydrocarbon radical of organic monobasic, dibasic, or tribasic carboxylic acids with 3 to 6 carbon atoms, n is a whole number from 1 to 12, p is 0 or a whole number from 1 to 3, and s is a whole number from 1 to 3, is provided. The process is carried out by reacting a perfluoroalkyl nitrate of the formula WITH AN ORGANIC MONO-, DO- OR TRIBASIC CARBOXYLIC ACID IN THE PRESENCE OF SULPHURIC ACID. The perfluoroalkyl esters are useful as water and oil-repellants. A new process for the manufacture of perfluoroalkyl esters of the formula |