Issue 7, 2015
From the journal:

Green Chemistry

Molecular iodine catalysed one-pot synthesis of chromeno[4,3-b]quinolin-6-ones under microwave irradiation†‡

Koneni V. Sashidhara,*a   Gopala Reddy Palnati,§a   L. Ravithej Singh,§a   Amit Upadhyay,c   Srinivasa Rao Avula,a   Abdhesh Kumara  and  Ruchir Kantb  

* Corresponding authors

a Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India
E-mail: sashidhar123@gmail.com, kv_sashidhara@cdri.res.in
Fax: +91 522 2771942
Tel: +91 991 9317940

b Molecular and Structural Biology Division, CSIR-Central Drug Research Institute, BS-10/1, Sector 10, Jankipuram extension, Sitapur Road, Lucknow 226031, India

c Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Raebareli 229 010, India

Abstract

We demonstrate a facile one pot approach for the regioselective synthesis of chromeno[4,3-b]quinolin-6-one derivatives in excellent yields under microwave (MW) irradiation. This transformation presumably proceeds via a three-component tandem annulation of 4-hydroxycoumarin with aromatic aldehydes and aromatic amines, involving a Povarov type reaction.

Graphical abstract: Molecular iodine catalysed one-pot synthesis of chromeno[4,3-b]quinolin-6-ones under microwave irradiation

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Article information

DOI
https://doi.org/10.1039/C5GC00756A
Article type
Communication
Submitted
08 Apr 2015
Accepted
20 May 2015
First published
29 May 2015

Green Chem., 2015,17, 3766-3770

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Molecular iodine catalysed one-pot synthesis of chromeno[4,3-b]quinolin-6-ones under microwave irradiation

K. V. Sashidhara, G. R. Palnati, L. R. Singh, A. Upadhyay, S. R. Avula, A. Kumar and R. Kant, Green Chem., 2015, 17, 3766 DOI: 10.1039/C5GC00756A

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