Patent ID: 7767857

Claim:
A method of making 2,4,6,-trichloroaniline intermediate (B), comprising: preparing a mixture of aniline (A) with a solvent until solution is brought to reflux, wherein said solvent is selected from the group consisting of polar aprotic solvents, halogenated solvents, protic solvents, and hydrocarbon solvents; adding intervals of an N-Chlorinating reagent until reaction has completed and the resultant mixture is substantially 2,4,6-trichloroaniline; cooling said resultant mixture to about room temperature; adding said mixture to H 2 O and stirring said mixture until a first crude was formed; dissolving first said crude in a solvent and washing said mixture with H 2 O and brine; drying said mixture with an anhydrous salt and filtering said crude and evaporating solvent and a second solid was formed; and dissolving said second solid in a hexane solution and filtering and evaporating said solution to form a third solid being 2,4,6-trichloroaniline intermediate (B)