Novel alkali-promoted hydrotalcite for selective synthesis of 2-methoxy phenyl benzoate from guaiacol and benzoic anhydride

Bhanawase, Shivaji L. ; Yadav, Ganapati D. (2017) Novel alkali-promoted hydrotalcite for selective synthesis of 2-methoxy phenyl benzoate from guaiacol and benzoic anhydride Clean Technologies and Environmental Policy, 19 (4). pp. 1169-1180. ISSN 1618-954X

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Official URL: https://link.springer.com/article/10.1007/s10098-0...

Related URL: http://dx.doi.org/10.1007/s10098-016-1316-7

Abstract

Esters find several applications such as solvents, flavours and fragrants and intermediates in synthesis of drugs. In the present work, 2-methoxy phenyl benzoate was efficiently synthesized from guaiacol and benzoic anhydride by acylation. A variety of catalysts such as hydrotalcite and alkali-promoted hydrotalcite was synthesized. Potassium-promoted hydrotalcite (K/HT) calcined at 500 °C for 6 h was active, selective and reusable. It was characterized by different techniques. A slurry batch reactor was used to study reaction mechanism and kinetics. 2-Methoxy phenyl benzoate was efficiently obtained with 100% selectivity at guaiacol conversion of 98% over K/HT at 100 °C after 6 h. A power law model with second-order kinetics was fitted to obtain an apparent activation energy of reaction of 21.1 kcal mol−1. The process is clean and green.

Item Type:Article
Source:Copyright of this article belongs to Springer Verlag.
ID Code:110696
Deposited On:18 Sep 2017 12:05
Last Modified:18 Sep 2017 12:05

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