A process for preparing m-dichlorobenzene by atmospheric selective transfer reaction of p-dichlorobenzene in the presence of AlCl3 and H2O is described.

• 阐述了常压下对二氯苯在催化剂无水三氯化铝及助催化剂水的存在下发生转位反应，高选择地制取间二氯苯的工艺过程；