78972-72-2Relevant academic research and scientific papers
3-Chlor-5-dimethylamino-2-formyl-4-aza-2,4-pentadiennitril, Synthese und Umsetzungen mit Nucleophilen
Klemm, Kurt,Pruesse, Wolfgang,Baron, Lothar,Daltrozzo, Ewald
, p. 2001 - 2018 (2007/10/02)
3-Chloro-5-dimethylamino-2-formyl-4-aza-2,4-pentadienenitrile (7) is prepared by partial hydrolysis of the iminium perchlorate 1.In 7 the electrophilic centres (1, 3, 5) regioselectively react with secondary alkylamines, arylamines, and hydrazine derivatives to yield 3-amino-substituted formylazapentadienenitriles and (hydrazonomethyl)azapentadienenitriles.Intramolecular cyclisation leads to triazole betaines, pyrazoles, and 1,4-dihydropyrimidines.
