申请人:——
公开号:US20030078422A1
公开(公告)日:2003-04-24
Process for the preparation of benzo-fused heterocycles of general formula I:
1
in which X, R
1
, R
2
, R
3
, R
4
, R
5
and n are as defined in claim 1, by reacting tetrahydrobenzo-fused heterocycles of formula II:
in which X, R
1
, R
2
, R
3
, R
4
, R
5
, n and Ac are as defined in claim 1, with a catalytic amount of a noble metal catalyst in the presence of a hydrogen acceptor and then deacylating the acylated amino group by the addition of an amine.
一般式I:1中X、R1、R2、R3、R4、R5和n如权利要求1所定义的苯并杂环的制备过程:通过将一般式II中X、R1、R2、R3、R4、R5、n和Ac如权利要求1所定义的四氢苯并杂环与催化量的贵金属催化剂在氢受体的存在下反应,然后通过加入胺去酰化氨基基团。