A novel process for preparing 6-chloro-N-methyl-2,3,4,5-tetrahydro-1 H-3-benzazepine comprising cyclizing N-methyl-N-[2-(2'-chlorophenyl) ethyl]-2-chloroethylamine hydrochloride in a solution of trichlorobenzene and aluminum chloride.
                            一种制备 6-
氯-N-甲基-2,3,4,5-四氢-1 H-3 苯并氮杂卓的新工艺,包括在
三氯苯和
氯化铝溶液中环化 N-甲基-N-[2-(2'-
氯苯基)乙基]-
2-氯乙胺盐酸盐。