Patent ID: 7312350

Claim:
Process for arylalkynes, comprising: in a step A) reacting compounds of the formula (I), Ar—[X] n (I), where n is one or two and Ar is a substituted or unsubstituted aromatic or substituted or unsubstituted polyaromatic radical and X is, in each case independently, chlorine, bromine, iodine, a sulphonate or a diazonium salt, in the presence of a palladium catalyst and in the presence of at least one base; with compounds of the formula (II), where Y is fluorine, chlorine, bromine, iodine, (C 1 -C 12 -alkyl)sulphonyloxy or (C 1 -C 12 -haloalkyl)sulphonyloxy and R 1 is hydrogen, cyano, C 1 -C 12 -alkyl, C 5 -C 14 -aryl, fluorine, chlorine, COO(C 5 -C 14 -aryl), COO(C 1 -C 12 -alkyl), CON(C 5 -C 14 -aryl) 2 , CON(C 1 -C 12 -alkyl) 2 , OCO(C 5 -C 14 -aryl) or OCO(C 1 -C 12 -alkyl), to form compounds of the formula (III), and in a step B) reacting the compounds of the formula (III) with a base to convert it into compounds of the formula (IV). Ar—≡—R 1 (IV).