| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to a method of producing diaryl carbonate via re-esterification of an aromatic alcohol with dialkyl carbonate in the presence of a re-esterification catalyst over a time [t], wherein the aryl group is selected from an unsubstituted phenyl and mono-, di- and trisubstituted phenyl group, wherein the alkyl group is selected from C-Clinear and branched alkyl groups, wherein concentration of the catalyst is denoted by [c], which is expressed as the ratio of a gram of the catalyst per gram of the aromatic alcohol and dialkyl carbonate, wherein a period of time [t] and concentration of the catalyst [c] are defined with given approximation to equilibrium for re-esterification of the aromatic alcohol with dimethyl carbonate to obtain methyl aryl carbonate and methanol, wherein the product [c]*tis at least equal to 1.5*[c]*t, in, apart from that, the same reaction conditions and wherein the given approximation to equilibrium for re-esterification of the aromatic alcohol with dimethyl carbonate to obtain methyl aryl carbonate and methanol lies in the range from 70 to 100%.EFFECT: method enables to obtain higher conversion of the aromatic alcohol.13 cl, 1 dwg, 3 tbl, 16 ex |
