Rac.-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-7-methoxyisoquinoline hydrochloride 、
聚合甲醛 在
镍 盐酸 、 methanol-ether 作用下,
以
甲醇 为溶剂,
反应 2.0h,
以there is obtained rac.-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydro-7-methoxy-2-methylisoquinoline hydrochloride, m.p. 273°-275°的产率得到4-(3,4-dichlorophenyl)-7-methoxy-2-methyl-3,4-dihydro-1H-isoquinoline;hydron;chloride