| 摘要 |
Aromatic nitriles having the general formula (I): <CHEM> wherein: - R represents the hydrogen atom., a fluorine, chlorine, bromine or iodine atom, a (C1-C5)-alkoxy group, a carboxy group, a (C1-C5)-carboxy-alkyl, or an aryl group selected from among phenyl, halo-phenyl, phenyl-ether or nitrile; - R' and R" either equal to, or different from, each other, represent the hydrogen atom or a fluorine, chlorine, bromine or iodine atom; are obtained by reacting an organic or inorganic ammonium salt (III): NH4(+) X(-) (III) and an aromatic trichloromethyl derivative having formula (II): <CHEM> wherein R, R' and R" have the above set forth meaning, with the exception that when R in formula (I) represents the nitrile group, the corresponding R group in formula (II) represents the trichloromethyl group, operating in the presence of a catalyst consisting of a metal oxide or a metal salt. The process makes it possible high yields and high selectivities to the useful reaction product to be obtained. |
