| abstract |
A method for producing benzo-annelated heterocycles of general formula (I), wherein X, R?1, R2, R3, R4, R5¿ and n have the meaning cited in Claim 1, by reacting tetrahydrobenzo-annelated heterocycles of formula (II), wherein X, R?1, 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. |