Patent ID: 7683195

Claim:
A silver β-ketocarboxylate represented by Formula (1) below: wherein in Formula (1), R is a straight, branched or cyclic saturated or unsaturated C 1 to C 20 aliphatic hydrocarbon group, R 1 —CY 2 —, CY 3 —, R 1 —CHY—, R 2 O—, a phenyl group, a phenyl group with one or more substituent groups, R 5 R 4 N—, a hydroxyl group (—OH), an amino group (—NH 2 ), or (R 3 O) 2 CY—; wherein the Y groups are identical or different, and each is a fluorine atom, a chlorine atom, a bromine atom, or a hydrogen atom, R 1 is a straight, branched or cyclic saturated or unsaturated C 1 to C 19 aliphatic hydrocarbon group, or a phenyl group, R 2 is a straight, branched or cyclic saturated or unsaturated C 1 to C 20 aliphatic hydrocarbon group, R 3 is a straight, branched or cyclic saturated or unsaturated C 1 to C 16 aliphatic hydrocarbon group, and R 4 and R 5 are identical or different, and each is a straight, branched or cyclic saturated or unsaturated C 1 to C 18 aliphatic hydrocarbon group; wherein in Formula (1), the X groups are identical or different, and each is a hydrogen atom, a straight, branched or cyclic saturated or unsaturated C 1 to C 20 aliphatic hydrocarbon group, R 6 O—, R 6 S—, R 6 —CO—, R 6 —CO—O—, a halogen (fluorine, chlorine, bromine, iodine), a benzyl group, a phenyl group, a phenyl group or a benzyl group that has one or more substituent groups, a cyano group (—C≡N), a N-phthaloyl-3-aminopropyl group, or a 2-ethoxyvinyl group (C 2 H 5 —O—CH═CH—); and wherein R 6 is a straight, branched or cyclic saturated or unsaturated C 1 to C 10 aliphatic hydrocarbon group, a thiophene group (C 4 H 3 S—), a phenyl group, a diphenyl group, or a phenyl group or a diphenyl group that has one or more substituent groups.