Chemical Papers

DFT calculations on the Friedel-Crafts benzylation of 1, 4-dimethoxybenzene using ZnCl2 impregnated montmorillonite K10—inversion of relative selectivities and …

C Waterlot, D Couturier, B Rigo, A Ghinet, M De Backer

Index: Waterlot, Christophe; Couturier, Daniel; Rigo, Benoit; Ghinet, Alina; De Backer, Marc Chemical Papers, 2011 , vol. 65, # 6 p. 873 - 882

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Abstract

Abstract Zinc was bound on montmorillonite K10 by cation exchange to obtain a catalyst named clayzic. In the Friedel-Crafts benzylation of 1, 4-dimethoxybenzene, this catalyst was used for the synthesis of substituted diphenylmethanes using 4-chlorobenzyl chloride and 4- bromobenzyl bromide. During the reaction, sub-products from a second benzylation reaction process were observed. For a better understanding of their formation, reactions were ...

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