Synlett, Inhaltsverzeichnis Synlett 2012; 23(20): 2943-2946DOI: 10.1055/s-0032-1317494 letter © Georg Thieme Verlag Stuttgart · New York Synthesis of Stable 1H-Azirines Reinvestigated: A Structural Corrigendum Klaus Banert* Organic Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany Fax: +49(371)53121229 eMail: klaus.banert@chemie.tu-chemnitz.de , Manfred Hagedorn Organic Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany Fax: +49(371)53121229 eMail: klaus.banert@chemie.tu-chemnitz.de , Heiko Peisker Organic Chemistry, Chemnitz University of Technology, Strasse der Nationen 62, 09111 Chemnitz, Germany Fax: +49(371)53121229 eMail: klaus.banert@chemie.tu-chemnitz.de › Institutsangaben Artikel empfehlen Abstract Artikel einzeln kaufen Alle Artikel dieser Rubrik Abstract The isoquinoline-catalyzed synthesis of pretended 1H-azirines from phenacyl bromides and N,N′-dialkylcarbodiimides was repeated. The products do not possess the structure of antiaromatic 1H-azirines, but simple N-acyl-N,N′-dialkylureas were formed instead. This structural corrigendum was confirmed by the independent synthesis of the known ureas and comparison of their 1H NMR and 13C NMR spectroscopic data in the case of six compounds. Thus, 1H-azirines keep their classification as very short-lived intermediates. Key words Key wordsacylation - antiaromatic heterocycles - structure - assignment by spectroscopy - ureas Volltext Referenzen References and Notes For reviews on 1H-azirines and 2H-azirines, see: 1a Backes J In Houben-Weyl . Vol. E16c nd; Klamann D. Thieme; Stuttgart: 1992: 321 1b Nair V In The Chemistry of Heterocyclic Compounds, Small-Ring Heterocycles. Vol. 42, Part 1. Hassner A. Wiley; New York: 1983: 215 1c Pearson WH, Lian BW, Bergmeier SC In Comprehensive Heterocyclic Chemistry II . Vol. 1A. Padwa A. 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