Patent ID: 7273939

Claim:
A method for preparing a compound of Formula I: said method comprising the steps of: contacting a compound of Formula II: with 1,3,5-benzene-tricarbonyl chloride in the presence of a polar aprotic solvent to form an amide adduct; and subsequently condensing the amide with a proximate anilino group present in the adduct in the presence of a condensing agent wherein the condensing agent is POCl 3 , diphenyl chlorophosphate or a combination thereof to form a compound of Formula I wherein: R 1 is the same or different at each occurrence and is hydrogen, C 1 -C 20 alkyl, halo, C 1 -C 20 fluoroalkyl, C 6 -C 20 aryl, C 4 -C 20 heteroaryl, C 1 -C 20 alkoxy, C 6 -C 20 aryloxy, C 1 -C 20 thioalkoxy, C 6 -C 20 thioaryloxy, amino, carboxyl, cyano, nitro, or two adjacent R groups together can be —O—(CH 2 ) t —O— or a fused aromatic ring; R 2 is the same or different at each occurrence and is hydrogen, C 1 -C 20 alkyl, halo, C 1 -C 20 fluoroalkyl, C 6 -C 20 aryl, C 4 -C 20 heteroaryl, C 1 -C 20 alkoxy, C 6 -C 20 aryloxy, C 1 -C 20 thioalkoxy, C 6 -C 20 thioaryloxy, amino, carboxyl, cyano, nitro, or two adjacent R groups together can be —O—(CH 2 ) t —O— or a fused aromatic ring; Ar is the same or different at each occurrence and is C 6 -C 20 aryl or C 4 -C 20 heteroaryl; m and p are the same or different at each occurrence and are each independently 0 or an integer from 1 to 3; and t is the same or different at each occurrence and is an integer from 1 to 6.