| 摘要 |
NEW MATERIAL:Dichlorotrichloromethyltoluene, except 2,6-dichloro-3-trichlo romethyltoluene. EXAMPLE:2,3-Dichloro-4-trichloromethyltoluene. USE:A raw material for producing aminotrifluoromethyltoluene derivatives useful as an intermediate for medicines and agricultural chemicals. PREPARATION:Dichlorotoluene, except 2,6-dichlorotoluene is reacted in the presence of an aluminum halide, such as anhydrous AlCl3, (which may be used as a solvent) in an amount of 1-10mol. based on the above-mentioned com pound, preferably in a solvent, such as 1,2-dichloroethane, at 0-100 deg.C for 20 min-4hr and water is then added to decompose complexes formed as a by- product. Thereby the aimed dichlorotrichloromethyltoluene which is a novel substance is readily obtained in good yield.
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