Synthesis of new 3 H -pyrrole derivatives from 3-aryl-2-oxa-7-azaspiro[4.4]nona-3,6,8-trienes

M. Yu. Belikov; I. V. Belikova; O. V. Ershov; S. V. Fedoseev; O. E. Nasakin

doi:10.1134/S1070428016090104

Synthesis of new 3H-pyrrole derivatives from 3-aryl-2-oxa-7-azaspiro[4.4]nona-3,6,8-trienes

Authors: Belikov M.Y.¹, Belikova I.V.¹, Ershov O.V.¹, Fedoseev S.V.¹, Nasakin O.E.¹
Affiliations:
1. I.N. Ul’yanov Chuvash State University
Issue: Vol 52, No 9 (2016)
Pages: 1312-1315
Section: Article
URL: https://journals.rcsi.science/1070-4280/article/view/214942
DOI: https://doi.org/10.1134/S1070428016090104
ID: 214942

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Abstract

8-Amino-3-aryl-1-imino-4-methyl-6-(morpholin-4-yl)-2-oxa-7-azaspiro[4.4]nona-3,6,8-triene-9-carbonitriles reacted with acetic anhydride to give different products, depending on the solvent. The reaction in tetrahydrofuran gave the corresponding N-acyl derivatives at the imino group, whereas in pyridine 5-amino-2-morpholin-4-yl-3-(1-aryl-1-oxopropan-2-yl)-3H-pyrrole-3,4-dicarbonitriles were formed as a result of opening of the furan ring.