Journalartikel
Autorenliste: Langer, P; Döring, M; Schreiner, PR; Görls, H
Jahr der Veröffentlichung: 2001
Seiten: 2617-2627
Zeitschrift: Chemistry - A European Journal
Bandnummer: 7
Heftnummer: 12
ISSN: 0947-6539
Verlag: Wiley
Abstract:
A now multicomponent reaction (multiple-anion-capture reaction) of 1,3-dianions with nitriles and oxalic acid-bis(imidoyl)chlorides is reported. This process allows for an efficient and regioselective synthesis of a variety of radialene-shaped pyrroles which constitute structurally new and interesting heterocyclic systems. The cyclization products can be considered as aza-analogues of the pharmacologically relevant substance class of 3-acetyltetramic acids. A rationalization of the experimental results is given based on quantum chemical computations.