PROCESS FOR THE PREPARATION OF BENZO-FUSED HETEROCYCLES

摘要

A method for producing benzo-annelated heterocycles of general formula (I), wherein X, R1, R2, R3, R4, R5 and n have the meaning cited in Claim 1, by reacting tetrahydrobenzo-annelated heterocycles of formula (II), wherein X, R1, R2, R3, R4, R5, n and Ac have the meaning cited in Claim 1, with a catalytic amount of an earth metal catalyst in the presence of a hydrodgen acceptor and subsequently deacylating the acylated amino group by adding an amine.