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Regio- and stereoselective synthesis of 1-benzopyrano[2,3-b]pyrrolo[2,3-d]pyridines: A microwave-accelerated intramolecular [3+2] cycloaddition reaction of azomethine ylide

✍ Scribed by Sourav Maiti; T. M. Lakshmykanth; Suman Kalyan Panja; Ranjan Mukhopadhyay; Ayan Datta; Chandrakanta Bandyopadhyay

Publisher
Journal of Heterocyclic Chemistry
Year
2011
Tongue
English
Weight
212 KB
Volume
48
Category
Article
ISSN
0022-152X

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✦ Synopsis

Abstract

Regio‐ and stereoselective syntheses of tetracyclic compounds having chromone, pyrrolidine, and piperidine rings have been accomplished by an intramolecular [3+2] cycloaddition reaction involving azomethine ylide. The reactions were carried out thermally as well as by irradiation with microwave. The latter process accelerates the reaction. The selectivities were investigated by density functional theory computation. J. Heterocyclic Chem., (2011).

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