申请人:SmithKline Corporation
公开号:US04200754A1
公开(公告)日:1980-04-29
A novel process for preparing 7,8-dichloro-1,2,3,4-tetrahydroisoquinoline by cyclizing N-acetyl-2,3-dichlorobenzylaminoacetaldehyde dimethyl acetal with a Lewis acid, reducing, and hydrolyzing the resulting acylated isoquinoline is disclosed.
本发明揭示了一种制备7,8-二氯-1,2,3,4-四氢异喹啉的新工艺,该工艺通过将N-乙酰-2,3-二氯苯甲基氨基乙醛二甲基缩醛与路易斯酸环化,还原并水解所得的酰化异喹啉。