Process for the production of carbonate esters

C - Chemistry – Metallurgy – 07 – C

Patent

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260/466.6

C07C 303/22 (2006.01) C07C 303/32 (2006.01) C07C 309/60 (2006.01) C07C 309/42 (2006.01)

Patent

CA 2024004

05-21(6939)A PROCESS FOR THE PRODUCTION OF CARBONATE ESTERS ABSTRACT OF THE DISCLOSURE The invention relates to a process of producing carbonate esters wherein an alkyl chloroformate is reacted with a phenolsulfonate in an alkaline medium and discloses the improve- ment whereby dialkylcarbonate formation is reduced by adding an acidifying agent to the reaction mixture after the reaction and before precipitation of the alkylsulfophenyl carbonate.

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