Process for the preparation of alkali metal phosphonoformates

Details Process for the preparation of alkali metal phosphonoformates Process for the preparation of alkali metal phosphonoformates

C - Chemistry, Metallurgy

07

F

260/458.6

C07F 9/40 (2006.01) C07F 9/38 (2006.01)

Patent

CA 1297495

HOE 86/F 050 Abstract A process for the production of alkali-phosphonoformates which comprises bringing together in a first stage a trialkyl ester of phosphonoformic acid and an aqueous solution of an alkali hydroxide at a temperature in the range from the freezing point of water and about 40°C, either keeping the resulting mixture in a second stage for further progress of the reaction and then heating the reaction mixture in a third stage to a temperature up to about 100°C for completion of the saponification, or heating the reaction mixture immediately for completion of the saponification to a temperature of up to 100°C.

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