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ChemicalBook CAS DataBase List 3,4-Dichloro-6-(trifluoromethyl)toluene
74483-51-5

3,4-Dichloro-6-(trifluoromethyl)toluene synthesis

1synthesis methods

500 ml of hydrogen fluoride, 600 ml of carbon tetrachloride and 140 g of 3,4-dichlorotoluene are reacted at 110° to 115° C. and 18.5 to 19.5 bar pressure. 151 g of a stubstance containing, in addition to 79.1% by weight of 3,4-dichlorotoluene, 20.2% by weight of 2-methyl-4,5-dichloro-benzotrifluoride, are obtained, corresponding to 74% of the theoretical yield, relative to 3,4-dichlorotoluene converted.
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Yield:74483-51-5 74%

Reaction Conditions:

with hydrogen fluoride in tetrachloromethane;

Steps:

7 EXAMPLE 7

EXAMPLE 7 500 ml of hydrogen fluoride, 600 ml of carbon tetrachloride and 140 g of 3,4-dichlorotoluene are reacted at 110° to 115° C. and 18.5 to 19.5 bar pressure. 151 g of a stubstance containing, in addition to 79.1% by weight of 3,4-dichlorotoluene, 20.2% by weight of 2-methyl-4,5-dichloro-benzotrifluoride, are obtained, corresponding to 74% of the theoretical yield, relative to 3,4-dichlorotoluene converted.

References:

US4533777,1985,A

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