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A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles

✍ Scribed by Ajaj, Ismail; Mijin, DuÅ¡an; Maslak, Veselin; Brković, Danijela; Milčić, MiloÅ¡; Todorović, Nina; Marinković, Aleksandar

Book ID
120217315
Publisher
Springer Vienna
Year
2013
Tongue
English
Weight
435 KB
Volume
144
Category
Article
ISSN
0026-9247

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## Abstract The 1,3‐dipolar addition reaction of acrylonitrile to the betaine 1‐phenyl or methyl‐3‐oxidopyridinium is not so highly regioselective as generally assumed. New regioisomers are isolated. Their structures are proven by mass spectroscopy and proton‐and carbon‐NMR spectroscopy. Some 3,4di