Patent ID: 7442792

Claim:
A process for preparing a compound of Formula I: wherein: Ar is phenyl or pyridyl substituted with 0 to 5 R 3 ; each R 1 and R 2 is, independently, H, (C 1 -C 8 )alkyl, or (C 1 -C 6 )alkoxyalkyl; each R 3 is, independently, H, halo, CN, nitro, (C 1 -C 4 )alkyl, (C 1 -C 4 )alkoxy, (C 1 -C 4 )haloalkyl, or (C 1 -C 4 )haloalkoxy; and each R A and R B is, independently, (C 1 -C 4 )alkyl; comprising: (a) contacting a compound of Formula III: with POX 3 in the presence of an ammonium halide salt and an amine selected from diisopropylethylamine, diethylphenylamine, diisopropylaniline, diethylaniline, diisopropylisobutylamine, tribenzylamine, triphenylamine, tricyclohexylamine, or diethylisopropylamine, wherein X is halo, to provide a compound of Formula II: and; (b) contacting said compound of Formula II with NHR 1 R 2 to provide said compound of Formula I.