Cs2CO3 as a source of carbonyl and ethereal oxygen in a Cu-catalysed cascade synthesis of benzofuran [3,2-c] quinolin-6[5-H]ones

Wajid Ali; Anju Modi; Ahalya Behera; Prakash Ranjan Mohanta; Bhisma K. Patel

doi:10.1039/C6OB01029F

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Cs₂CO₃ as a source of carbonyl and ethereal oxygen in a Cu-catalysed cascade synthesis of benzofuran [3,2-c] quinolin-6[5-H]ones†

Wajid Ali,^a Anju Modi,^a Ahalya Behera,^a Prakash Ranjan Mohanta^a and Bhisma K. Patel*^a

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* Corresponding authors

^a Department of Chemistry, Indian Institute of Technology Guwahati, Assam, India
E-mail: patel@iitg.ernet.in
Fax: +91-3612690762

Abstract

The simultaneous construction of C–C, C–O, and C–N bonds utilizing Cs₂CO₃ as a source of both carbonyl (CO) and ethereal oxygen and a cascade synthesis of benzofuro[3,2-c]quinolin-6(5H)-one have been achieved using a combination of Cu(OAc)₂ and Ag₂CO₃. A plausible mechanism has been proposed for this unprecedented transformation.

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Article information

DOI: https://doi.org/10.1039/C6OB01029F
Article type: Communication
Submitted: 12 May 2016
Accepted: 20 May 2016
First published: 20 May 2016

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Org. Biomol. Chem., 2016,14, 5940-5944

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Cs₂CO₃ as a source of carbonyl and ethereal oxygen in a Cu-catalysed cascade synthesis of benzofuran [3,2-c] quinolin-6[5-H]ones

W. Ali, A. Modi, A. Behera, P. R. Mohanta and B. K. Patel, Org. Biomol. Chem., 2016, 14, 5940 DOI: 10.1039/C6OB01029F

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Organic & Biomolecular Chemistry