Patent ID: 6903214

Claim:
A process of forming a 2-2′ bis(pyridyl)amine-BF 2 complex, where a boron atom is complexed by two ring nitrogens, comprising the step of reacting BF 3 with an amine having Formula (1) wherein: A and A′ represent independent azine ring systems corresponding to 6-membered aromatic ring systems containing at least one nitrogen; each X a and X b is an independently selected substituent, two of which may join to form a fused ring to A or A′; m and n are independently 0 to 4; and atoms 1, 2, 3, 4, 1′, 2′, 3′, and 4′ are carbon atoms; in the presence of a polar aprotic organic solvent containing a nitrile group that is not reactive with the BF 3 under reaction conditions and has the Formula: wherein R 1 , R 2 and R 3 each independently resents hydrogen, fluorine, alkyl, aryl, alkoxy, aryloxy, dialkylamino, diarylamino, cyano, or nitro groups wherein at least one of R 1 , R 2 and R 3 is not H; and R 1 and R 2 , R 2 and R 3 or R 1 and R 3 may join to form a cycloalkyl or an aryl ring group.