Council of Scientific and Industrial Research

B-Phani Kiran

Vasant Ramchandra Choudhary

Suman Kumar Jana

The invention relates to a process for the preparation of aralkylated aromatic compound with both small and large size aralkylating agents; wherein the catalyst used is heterogeneous solid catalyst removable from the reaction products by simple filtration, thus allowing the separated catalyst to be reused in the process. The catalyst is selected from micro or mesoporous gallosilicates and galloaluminosilicates, having structure similar to that of zeolites known in the prior art.

Process for the preparation of aralkylated aromatic compounds using heterogeneous catalyst

A supported catalyst and a process for the preparation of the catalyst, the catalyst containing mixed metal oxides or halides deposited on porous catalyst carriers or supports, useful for heterogeneously or solid catalyzed Friedel-Crafts reactions such as alkylation, aralkylation, acylation, or aroylation of aromatic compounds in the preparation of fine chemicals. The supported catalyst has high activity for the Friedel-Crafts reactions when the aromatic ring activating groups are present in the aromatic ring to be aralkylated, acylated or aroylated, and also when the ring activating group is absent or when aromatic ring deactivating groups are present in the aromatic ring to aralkylated, acylated or aroylated, so that the reaction temperature is low and/or the time for completing the reaction is short. The catalyst can be separated and used repeatedly for catalytic reactions.

Growing community of inventors

Maharashtra, India

B-Phani Kiran