Collect. Czech. Chem. Commun.
1993, 58, 555-564
https://doi.org/10.1135/cccc19930555
Simple Preparation of 4,5-Disubstituted 2-Cyclopentenones
Peter Šafářa, František Považaneca, Lubomír Zaliberab and Dušan Berkeša
a Department of Organic Chemistry, Slovak Technical University, 812 35 Bratislava, Slovak Republic
b Department of Physical Chemistry, Slovak Technical University, 812 35 Bratislava, Slovak Republic
Abstract
(E-2-Formyl-3-(2-furyl)propenenitrile (I) reacts with primary aromatic amines under formation of 3-(arylamino)-2-[5-(arylamino)-2-oxo-3-cyclopenten-1-yl]propenenitriles (IVa-IVi). Condensation of I with salts of nitrogen bases in pyridine affords 2-(R-aminomethylidene)-3-(2-furyl)propenenitriles (Va-Vm).
