Patent ID: 7326796

Claim:
An ethylenically unsaturated compound having the structure: wherein n is 0, 1, or 2; A is O or NR 3 ; R 1 and R 2 are independently H; halogen; C 1 -C 10 alkyl or alkoxy, optionally substituted by halogen or ether oxygen; C 6 -C 20 aryl; Y; C(R f )(R f ′)OR 4 ; R 5 Y; OR 5 Y; and R 3 is H; C 1 -C 10 alkyl or alkoxy, optionally substituted by halogen o'r ether oxygens; C 6 -C 26 aryl; Y; C(R f )(R f ′)OR 4 ; R 5 Y; OR 5 Y; or R 1 and R 2 taken together are ═C(R f )(R f ′) or C 2 -C 9 alkylene, optionally substituted by halogen or incorporating an ether oxygen; or R 2 and R 3 taken together are part of a double bond; Y is COZ or SO 2 Z; R 4 is hydrogen or an acid-labile protecting group; R f and R f ′ are the same or different fluoroalkyl groups of 1 to 10 carbon atoms or taken together are (CF 2 ) m where m is 2 to 10; R 5 is a C 1 -C 20 alkylene group, optionally substituted by halogen or ether oxygen; Z is OH, halogen, R 6 or OR 6 ; and R 6 is a C 1 -C 20 alkyl group, optionally substituted by halogen or ether oxygens; or C 6 -C 20 aryl; with the proviso that at least one of R 1 or R 2 is fluorine or contains one or more fluorine atoms.