Method for chlorination of methylated aromatic compounds
AssigneeKureha Chemical Industry Co., Ltd.
InventorsKazuhiko Sunagawa, Hajime Hoshi, Tsumoru Watanabe
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Abstract
A process for chlorination of methylated aromatic compounds in a titanium tetrachloride is disclosed. The ring chlorination is first carried out by reacting said methylated aromatic compounds with chlorine gas under reduced light conditions, and then the side chain chlorination is carried out by reacting the resulting mixture with chlorine gas under light irradiation conditions. The process ensures continuous chlorination of aromatic rings and side chains of methylated aromatic compounds at a high yield without using any catalysts or perilous solvents such as carbon tetrachloride.
Claims6
The method for chlorination of a methylated aromatic compound, wherein said chlorination is carried out by reacting said methylated aromatic compound with chlorine gas in a titanium tetrachloride solvent under conditions which avoid light irradiation and thereby effecting chlorination.
Dependencies are inferred from the claim text.