A calcium catalysed regioselective (5-exo dig) tandem process for the synthesis of fully substituted furans

Srinivasarao Yaragorla; Ravikrishna Dada; Abhishek Pareek; Garima Singh

doi:10.1039/C6RA03042D

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A calcium catalysed regioselective (5-exo dig) tandem process for the synthesis of fully substituted furans†‡

Srinivasarao Yaragorla,*^a Ravikrishna Dada,^a Abhishek Pareek^a and Garima Singh^a

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* Corresponding authors

^a SY-Organic & Medicinal Chemistry Laboratory, Department of Chemistry, Central University of Rajasthan, NH-8, Bandersindri, Ajmer-distt, India
E-mail: srinivasarao@curaj.ac.in, ysriict@gmail.com

Abstract

An efficient and highly regio-selective synthesis of fused & substituted furans has been described using Ca(OTf)₂ as the catalyst. This tandem process involves alkylation, 5-exo dig cyclisation and isomerization to furnish densely substituted furans under solvent free conditions. A case study of regioselectivity has been demonstrated.

This article is part of the themed collections: Editors’ collection: Catalytic Organic Transformations and Editors Collection for RSC Advances - India

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Article information

DOI: https://doi.org/10.1039/C6RA03042D
Article type: Communication
Submitted: 02 Feb 2016
Accepted: 09 Mar 2016
First published: 21 Mar 2016

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RSC Adv., 2016,6, 28865-28870

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A calcium catalysed regioselective (5-exo dig) tandem process for the synthesis of fully substituted furans

S. Yaragorla, R. Dada, A. Pareek and G. Singh, RSC Adv., 2016, 6, 28865 DOI: 10.1039/C6RA03042D

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A calcium catalysed regioselective (5-exo dig) tandem process for the synthesis of fully substituted furans†‡

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A calcium catalysed regioselective (5-exo dig) tandem process for the synthesis of fully substituted furans

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