journal article·2011-08

Green alkylation of anisole with cyclohexene over 20% cesium modified heteropoly acid on K-10 acidic montmorillonite clay

Ganapati D. Yadav, Santosh R. More

Applied Clay Science· Volume 53· Issue 2
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Abstract

Abstract Alkylation of anisole with cyclohexene is an industrially important reaction. It was carried out in the liquid phase using in a number of solid acids as catalysts. Acid treated clay (K-10) as support with 20% m/m 20%Cs 2.5 H 0.5 PW 12 O 40 (cesium modified dodecatungstophosphoric acid; designated as Cs-DTP/K-10), with nano-sized particles, was found to be the best catalyst. This reaction leads to formation of 2-cyclohexylanisole and 4-cyclohexylanisole, which have been used as perfumery compounds and also as precursors to synthesise several commercial products. Conversion of cyclohexene was found to be 96% after 3 h at 105 °C. No oligomerisation of cyclohexene was observed under the optimized reaction conditions. Effect of different parameters on rate of reaction was studied systematically and the kinetics of reaction deduced.
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Research context

OpenAlex topics: Polyoxometalates: Synthesis and Applications · Chemical Synthesis and Reactions · Mesoporous Materials and Catalysis

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