Organic & biomolecular chemistry

Study of regioselective dialkylation of naphthalene in the presence of reusable zeolite catalysts

K Smith, SD Roberts, GA El-Hiti

Index: Smith, Keith; Roberts, Simon D.; El-Hiti, Gamal A. Organic and Biomolecular Chemistry, 2003 , vol. 1, # 9 p. 1552 - 1559

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Citation Number: 30

Abstract

Highly regioselective dialkylation of naphthalene using various alkylating agents can be achieved over zeolite catalysts. For example, the tert-butylation of naphthalene (1) using tert- butanol in cyclohexane over a dealuminated H-Mordenite (HM) zeolite has been optimised to give a 60% yield of 2, 6-di-tert-butylnaphthalene (3) with a 2, 6/2, 7 ratio of over 50. This has been achieved by varying the reaction time, temperature, solvent, pressure, amount of ...