The method for parallel-producing 2,5-dichlorotoluene and 2,6-dichlorotoluene

摘要

The method for parallel-producing 2,5-dichlorotoluene and 2,6-dichlorotoluene comprising chlorinating the mixture of 4-­tert-butyl (or isopropyl) toluene and 3,5-tert-butyl (or isopropyl) toluene in the presence of Lewis acid and simple substance sulphur, using the same chlorination apparatus, producing 4-tert-butyl (or isopropyl)-2,5-dichlorotoluene and 3,5-di-tert-butyl (or isopropyl)-2,6-dichlorotoluene, and transalkylating individually the same.