796874-84-5Relevant academic research and scientific papers
Synthesis of 5-(substituted phenylazo)-6-hydroxy-4-methyl-3--cyano-2- pyridones from ethyl 3-oxo-2-(substituted phenylazo)butanoates
Dostanic, Jasmina,Valentic, Natasa,Uscumlic, Gordana,Mijin, Dusan
, p. 499 - 504 (2012/02/03)
A new procedure for the synthesis of known azo pyridone dyes is presented. A series of 5-(substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2--pyridones were prepared from ethyl 3-oxo-2-(substituted phenylazo)butanoates and cyanoacetamide in acetone using potassium hydroxide as a catalyst by simple refluxing the reaction mixture. The structure of these dyes was confirmed by FT-IR, NMR and UV-Vis spectroscopy. Copyright 2011 (CC) SCS.
The microwave-assisted synthesis of 5-arylazo-4,6-disubstituted-3-cyano-2-pyridone dyes
Mijin, Du?an Z.,Baghbanzadeh, Mostafa,Reidlinger, Claudia,Oliver Kappe
experimental part, p. 73 - 78 (2010/10/21)
A novel protocol for the rapid synthesis of pyridone colorants under controlled microwave irradiation in a dedicated reactor is described. Short reaction times, high isolated yields, and versatility for different substrates are the advantages of the reported method.
