Method for Preparing Aromatic Carbonate

Patent metadata

Field	Value
Publication number	US-2016237019-A1
Application number	US-201415025379-A
Country	US
Kind code	A1
Filing date	Jan 16, 2014
Priority date	Oct 2, 2013
Publication date	Aug 18, 2016
Grant date	—

Abstract

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.

First claim

1 . A method for preparing an aromatic carbonate, comprising:
(A) preparing a reaction mixture containing an aliphatic carbonate by reacting an organometallic compound with carbon dioxide; and (B) preparing an aromatic carbonate by reacting the reaction mixture with an aromatic alcohol.

2 . The method according to claim 1 , wherein the aliphatic carbonate in the reaction mixture is reacted with the aromatic alcohol without being separated.

3 . The method according to claim 1 , wherein the organometallic compound contains a metal-oxygen-carbon bond.

4 . The method according to claim 1 , wherein the organometallic compound comprises at least one of an organometallic compound represented by Formula 1 and an organometallic compound represented by Formula 2:

wherein M a is a Group IV or Group XIV element; R 1 is a C 1 to C 12 hydrocarbon group; R 2 is a linear or branched C 1 to C 12 aliphatic hydrocarbon group or a cyclic C 5 to C 12 aliphatic hydrocarbon group; a is an integer from 0 to 2; b is an integer from 2 to 4; and a+b is 4,

wherein M b and M c are each independently a Group IV or Group XIV element; R 3 and R 5 are each independently a C 1 to C 12 hydrocarbon group; R 4 and R 6 are each independently a linear or branched C 1 to C 12 aliphatic hydrocarbon group or a cyclic C 5 to C 12 aliphatic hydrocarbon group; c and e are each independently an integer from 0 to 2; d and f are each independently an integer from 1 to 3; and c+d and e+f are each independently 3.

5 . The method according to claim 1 , wherein preparing an aliphatic carbonate (step (A)) is performed at about 130° C. to about 230° C. at a carbon dioxide pressure of about 10 bar to about 200 bar.

6 . The method according to claim 1 , wherein preparing an aromatic carbonate (step (B)) is performed at about 100° C. to about 250° C. at about 1 bar to about 30 bar.

7 . The method according to claim 1 , wherein preparing an aliphatic carbonate (step (A)) is performed in the presence of an alcohol containing a linear or branched C 1 to C 12 aliphatic hydrocarbon group or an alcohol containing a cyclic C 5 to C 12 aliphatic hydrocarbon group.

Assignees

• Samsung Sdi Co Ltd

Inventors

• Lee Chang Hoon
• Kim Dong Baek
• Lee Yeon Ju
• Kwon O Sung
• Yang Il Hwan

Classifications

• C07C68/06 Primary

  from organic carbonates · CPC title

• C07C68/04

  from carbon dioxide or inorganic carbonates · CPC title

• Y02P20/141

  Feedstock · CPC title

• C07C67/58 Primary

  by liquid-liquid treatment · CPC title

• C07C68/065

  from alkylene carbonates · CPC title