Production of carbonates

Details Production of carbonates Production of carbonates

C - Chemistry, Metallurgy

07

C

C07C 68/06 (2006.01) C07C 69/96 (2006.01) C07C 201/12 (2006.01) C07C 205/59 (2006.01)

Patent

CA 2054921

Case 7558 ABSTRACT OF THE DISCLOSURE Production of Carbonates A process for the production of an alkyl aryl carbonate comprrises reacting an alkanol with a diaryl carbonate at elevated temperature in the presence, as catalyst, of 1,5,7, triaza-bicyclo [4.4.0] dec-5-ene. The alkanol is preferably a C1 to C8 alcohol, more preferably one that is branched at the carbon atom carrying the hydroxyl group. The reaction is conveniently carried out in the liquid phase at 20 to 100°C using a molar excess of the alkanol. The process is particularly suitable for the reaction of t-butanol with diphenyl carbonate to form phenyl t-butyl carbonate.

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