Patent ID: 6388139
Filing Date: 2002-05-14
Classification: C07C

Abstract:
A process for producing perfluoro(alkyl vinyl ether) represented by the formula Aâ€”CF&boxH;CFâ€”Oâ€”B, comprising the steps of:contacting at least one &agr;,&bgr;-dihaloperfluoro ether represented by the formula Aâ€”CFXâ€”CFXâ€”Oâ€”B with zero valent zinc in the presence of a pyrrolidinone solvent to form a first mixture comprising perfluorovinyl ether, and recovering the perfluoro(alkyl vinyl ether) from the first mixture, wherein: X is selected from the group consisting of chlorine, bromine, or iodine, A is selected from the group consisting of fluorine and normal and branched chain perfluoroalkyl radicals, and B is selected from the group consisting of normal and branched chain perfluoroalkyl radicals, wherein A and B can contain oxygen and sulfur heteroatoms configured in functional groups selected from ether, ester, ketone, and sulfonyl fluoride, and wherein A and B can be bonded together forming a ring.