Monatshefte für Chemie/Chemical Monthly

Synthese und Reaktionen von 2-Amino-1-aryl-5-oxo-Δ2-pyrrolin-3-carbonitrilen

H Schäfer, K Gewald

Index: Schaefer, Harry; Gewald, Karl Monatshefte fuer Chemie, 1989 , vol. 120, p. 315 - 322

Full Text: HTML

Citation Number: 16

Abstract

Summary The reaction of malononitrile with α-chloro acetanilides 1 in presence of potassium carbonate yields the 1-aryl-5-oxo-Δ 2-pyrrolin-3-carbonitriles 2, in presence of triethylamine the 4, 6-diamino-1-aryl-2-oxo-2, 3-dihydropyrrolo [2, 3-b] pyridin-5-carbonitriles 3 are formed. From 2-chloroacetylamino-benzencarbonitrile and malononitrile the 5-amino-1- oxo-1, 2-dihydropyrrolo [1, 2-a] chinazolin-3-carbonitrile (4) arise. Analogously from the 2- ...