Patent ID: 7897769

Claim:
A fluorophilic compound having structure VI wherein R 1 is a C 2 -C 20 aliphatic or a C 3 -C 20 aromatic radical comprising at least one functional group susceptible to reaction with nucleophilic fluoride ion, said functional group being selected from the group consisting of aliphatic sulfonate esters and aromatic sulfonate esters; R 2 is a C 1 -C 10 alkyl group or a C 3 -C 10 cycloalkyl group; R 3 is hydrogen, a C 1 -C 10 alkyl group, or a C 1 -C 10 alkoxy group; and R 4 is hydrogen or a C 1 -C 10 alkyl group, or a C 1 -C 10 alkoxy group.