Issue 8, 2015

Synthesis of 2-phenylnaphthalenes from styrene oxides using a recyclable Brønsted acidic [HNMP]+HSO4 ionic liquid

Abstract

This work reports a novel and efficient protocol for the synthesis of 2-phenylnaphthalenes from styrene oxides using a recyclable ionic liquid. The ionic liquid N-methyl-2-pyrrolidone hydrogensulfate [HNMP]+HSO4 played the dual role of a catalyst and a solvent. It efficiently constructs 2-phenylnaphthalene and its derivatives in excellent yields with much simplicity in the operation. The present protocol has higher atom efficiency and wider substrate applicability. The [HNMP]+HSO4 has been effectively recycled for up to five consecutive cycles without appreciable loss in its activity.

Graphical abstract: Synthesis of 2-phenylnaphthalenes from styrene oxides using a recyclable Brønsted acidic [HNMP]+HSO4− ionic liquid

Supplementary files

Article information

Article type
Paper
Submitted
30 May 2015
Accepted
07 Jul 2015
First published
08 Jul 2015

Green Chem., 2015,17, 4446-4451

Author version available

Synthesis of 2-phenylnaphthalenes from styrene oxides using a recyclable Brønsted acidic [HNMP]+HSO4 ionic liquid

K. V. Wagh and B. M. Bhanage, Green Chem., 2015, 17, 4446 DOI: 10.1039/C5GC01170A

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