Collect. Czech. Chem. Commun.
1984, 49, 2916-2921
https://doi.org/10.1135/cccc19842916
The reaction of 1-phenylmethyl-4N-acetylimino-1H-1,2,4-triazolium betain with butynedioic acid dimethyl ester
Peter Zálupský, Mária Bírošová and Lubor Fišera
Department of Organic Chemistry, Slovak Institute of Technology, 812 37 Bratislava
Abstract
The reaction between 1-phenylmethyl-4N-acetylimino-1H-1,2,4-triazolium betain(I) and dimethyl butynedioate is decribed. By performing the reaction at ration 1:1 the enamide III is formed. With a fivefold excess of the dipolarophile, except III, also pyrrolo[1,2-d]-triazole XII and pyridine derivative XV were obtained.
