METHOD OF PREPARING ALUMINA-SUPPORTED CATALYST AND EMPLOYMENT THEREOF Russian patent published in 2006 - IPC B01J21/04 B01J23/04 B01J37/02 C07C209/10 C07C269/04 C07D211/74 C07D295/10 C07D295/14 

FIELD: catalyst preparation methods.

SUBSTANCE: invention relates to alumina-supported catalyst preparation method and employment thereof in reactions of nucleophilic substitution of aromatic halides containing electron-accepting group. In particular, alumina support impregnated with alkali selected from alkali metal hydroxides is prepared by treating alkali metal hydroxide aqueous solution with aluminum oxide in organic solvent followed by drying thus obtained catalyst mixture at temperature not lower than 150°C. Catalyst is, in particular, used to introduce electron-accepting protective groups into organic compounds comprising at least one of -OH, -SH, and -NH, as well as in reaction of substituting amino, thio, or ether group for halogen in a haloarene and in preparation of 2-puperidinobenzonitrile.

EFFECT: simplified preparation of catalyst and regeneration of spent catalyst, and avoided involvement of dangerous reactants.

11 cl, 20 ex