Samsung Sdi Co., Inc.

Cheil Industries Inc.

Lotte Advanced Materials Co., Ltd.

Dong Baek Kim

Chang Hoon Lee

Mie Ock Kim

Yeon Ju Lee

Jong Won Lee

O Sung Kwon

Jin Yong Bae

Il Hwan Yang

Su Jeong Song

Seung Hwan Lee

Ju Hyun Lee

A method for preparing an aromatic carbonate, of the present invention, comprises the steps of: (A) preparing a reaction mixture containing an aliphatic carbonate by reacting an organometallic compound and carbon dioxide; and (B) preparing an aromatic carbonate by reacting the reaction mixture and an aromatic alcohol. The method for preparing an aromatic carbonate allows an aromatic carbonate to be economically prepared in a high yield by using carbon dioxide as a carbonyl supply source.

Method for preparing aromatic carbonate

A method for preparing a carbonic ester includes reacting carbon dioxide and a Cto Calcohol with an organometallic compound represented by Formula 1. With the method, carbonic ester can be prepared in high yield without recycling the organometallic compound.M(OR)&#x2003;&#x2003;[Formula 1]

Method for preparing carbonic ester using organometallic compound

A method of preparing an aromatic carbonate includes reacting a dialkyl carbonate with an aromatic alcohol in the presence of a catalyst represented by Formula 1. With the method, aromatic carbonate can be prepared from a dialkyl carbonate in high yield using a catalyst capable of increasing initial reactivity of the dialkyl carbonate.  

Method of preparing aromatic carbonate from dialkyl carbonate

The present invention provides a catalyst for synthesizing an aromatic carbonate, a method of preparing the same, and a method of preparing an aromatic carbonate from dialkyl carbonate using the catalyst. The catalyst has a unit structure consisting of Formulae 1a, 1b or 1c:  wherein Ris C1-C5 alkyl, Ris substituted or unsubstituted phenyl.

Catalyst, method of preparing the same, and method of preparing aromatic carbonate from dialkyl carbonate using the same

A method of preparing aromatic carbonate from dialkyl carbonate includes reacting an aromatic hydroxyl compound and dialkyl carbonate in the presence of at least one type of samarium-containing catalyst represented by Formula 1, Formula 2, or a combination thereof:SmX&#x2003;&#x2003;[Formula 1] wherein each X is the same or different and is independently C1 to C10 alkoxy, C1 to C10 alkyl phenoxy or phenoxy, and  wherein R1 and R2 are the same or different and are independently hydrogen or C1 to C6 alkyl.

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Uiwang-si, South Korea

Dong Baek Kim