Process for preparation of sulfonylurea salts

摘要

A process for the preparation of a compound of formula Iwherein R1 is selected from the group consisting of -CO2CH3, -CON(CH3)2, -OCH2CF3, -N(CH3)COCH3, -N(CH3)SO2CH3, -CF3, and -SO2C2H5;R2 is selected from the group consisting of hydrogen and -CF3; andM is selected from the group consisting of sodium and potassium;comprising: reacting a compound of formula IVin an aprotic, organic solvent with a compound of formula Vwherein R1, R2, and M are as defined above.