Patent ID: 8252938

Claim:
A process for the preparation of a 6-(aryl)-4-aminopicolinate of the formula wherein Q represents Cl or Br; R represents C 1 -C 4 alkyl; and W represents H, F or Cl; X represents H, F, C 1 or C 1 -C 4 alkoxy; Y represents halogen; and Z represents H or F; which comprises heating a 3-halo-6-(aryl)-4-iminotetrahydropicolinic acid ester of Formula (I) wherein R represents C 1 -C 4 alkyl; R 1 represents —OS(O) 2 R 2 , —OC(O)R 2 or —OC(O)OR 2 ; R 2 represents C 1 -C 4 alkyl or unsubstituted or substituted phenyl; Q represents Cl or Br; and W represents H, F or Cl; X represents H, F, C 1 or C 1 -C 4 alkoxy; Y represents halogen; and Z represents H or F; at a temperature from about 25° C. to about 150° C. in the presence of a polar solvent and recovering the product.