Synthesis 2017; 49(04): 763-769
DOI: 10.1055/s-0036-1588886
paper
© Georg Thieme Verlag Stuttgart · New York

Multicomponent Approach for the Synthesis of Substituted 1,8-Naphthyridine Derivatives Catalyzed by N-Bromosulfonamides

Ramin Ghorbani-Vaghei*
Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683, Hamedan, Iran   Email: rgvaghei@yahoo.com
,
Seyedeh Mina Malaekehpoor
Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, 6517838683, Hamedan, Iran   Email: rgvaghei@yahoo.com
› Author Affiliations
Further Information

Publication History

Received: 11 July 2016

Accepted after revision: 30 August 2016

Publication Date:
28 September 2016 (online)


Abstract

A single-step, facile synthesis of new 1,8-naphthyridine derivatives was carried out at room temperature under mild conditions using a three-component condensation reaction of substituted 2-aminopyridines, malononitrile or methyl/ethyl cyanoacetate, and various aldehydes in the presence of N,N,N′,N′-tetrabromobenzene-1,3-disulfonamide (TBBDA) or poly(N,N′-dibromo-N-ethylbenzene-1,3-disulfonamide) (PBBS) as Lewis acid. A simple procedure, good to high yields, easy workup, and purification and reusability of the catalyst are significant advantages of this process.

Supporting Information