Patent ID: 9328132
Filing Date: 2016-05-03
CPC Classification: C07C,C07D,C07F,C08F,C08G

Claim Text:
1. A complex of the general formula 1: wherein, X is an anionic ligand; Y is oxygen; L 1 is a neutral ligand other than an N-heterocyclic carbene ligand; L 2 is an N-heterocyclic carbene ligand; R 1 is hydrogen, —C 1-20 alkyl, —C 2-20 alkenyl, —C 2-20 alkynyl or —C 5-10 aryl; and R 2 , R 3 , R 4 and R 5 are independently hydrogen, halo, C 1 -C 16 alkyl, C 1 -C 16 alkoxy, C 1 -C 16 perfluoroalkyl, C 3 -C 7 cycloalkyl, C 2 -C 16 alkenyl, C 5 -C 14 aryl, C 5 -C 14 perfluoroaryl, C 3 -C 12 heterocyclyl, —OR 6 , —NO 2 , —COOH, —COOR 6 , —CONR 6 R 7 , —SO 2 NR 6 R 7 , —SO 2 R 6 , —CHO, —COR 6 , wherein R 6 and R 7 are independently C 1 -C 6 alkyl, C 1 -C 6 perfluoroalkyl, C 5 -C 14 aryl, C 5 -C 14 perfluoroaryl; or R 2 , R 3 , R 4 and R 5 may be optionally joined together to form a substituted or unsubstituted, fused carbocyclic C 4-8 ring, or a substituted or unsubstituted, fused aromatic ring.