Patent ID: 8163947

Claim:
A cyanation catalyst represented by formula (I): wherein R 1 through R 4 are the same as, or different from, one another, and are each an optionally substituted hydrocarbon group; R 1 and R 2 and/or R 3 and R 4 may form an optionally substituted carbon chain ring; R 5 through R 8 are the same as, or different from, one another, and are each a hydrogen atom, or an optionally substituted hydrocarbon group; R 5 and R 6 and/or R 7 and R 8 may form an optionally substituted carbon chain ring; R 9 and R 10 are the same as, or different from, each one other, and are each a hydrogen atom, or an optionally substituted hydrocarbon group; W, X, and Y are the same as, or different from, one another, and are each an optionally substituted binding chain; or X and/or Y may be non-existent; and M is a metal or a metal ion.