Process for the preparation of diaryl carbonates

Details Process for the preparation of diaryl carbonates Process for the preparation of diaryl carbonates

C - Chemistry, Metallurgy

07

C

260/466.7

C07C 68/02 (2006.01) B01J 27/24 (2006.01) C07C 69/96 (2006.01) B01J 31/02 (2006.01)

Patent

CA 1042912

ABSTRACT OF THE DISCLOSURE A process for the preparation of a diaryl cabonate by the reaction of an aromatic monohydroxy compound with phosgene under elimination of hydrogen chloride, wherein said reaction is carried out in the presence of a catalytic quantity of an aromatic heterocyclic basic nitrogen compound, selected from pyridine; quinoline; isoquinoline; picoline; acridine; pyrazine; pyridazine; pyrimidine or the corresponding benzoheterocyclic compound, an oxazine; a thiazine; a triazine and the corresponding benzoheterocyclic compound, or a salt thereof, or an adduct thereof formed under the reaction conditions.

236906

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