Collect. Czech. Chem. Commun. 1994, 59, 1458-1462
https://doi.org/10.1135/cccc19941458

Synthesis of New 2-Substituted 4-(2-Furyl)-4H-pyrans

Dušan Ilavskýa, Milan Brunckoa, Štefan Marchalína and Lubomír Zaliberab

a Department of Organic Chemistry, Slovak Technical University, 812 37 Bratislava, Slovak Republic
b Central Laboratory of Chemical Techniques, Slovak Technical University, 812 37 Bratislava, Slovak Republic

Abstract

Substituted 2-amino-3-cyano-4H-pyrans represent important precursors in syntheses of condensed heterocycles containing a 4H-pyran nucleus. In the context of studies of reactivity of 2-amino-5-acetyl-4-(5-X-2-furyl)-3-cyano-6-methyl-4H-pyrans we were interested in the possibility of preparing 2-aryl(heteroaryl)methyleneamino-4H-pyrans III.