A Convenient Method for the Preparation of 2-Pyridone Derivatives

Electron ionization tandem mass spectra of some 3‐cyano‐4‐substituted phenyl‐6‐phenyl‐2(1H)‐pyridones

“…5 The new compounds, which to our knowledge have not been described previously, are: 3-cyano-4-( 2-chlorophenyl )-6-phenyl-2(1H)-pyridone, m.p. 268-2708C;3cyano-4-(2,6-bichlorophenyl)-6-phenyl-2(1H)-pyridone, m.p.…”

2-Alkyl-5-imino-1-benzopyrano[3,4-c]pyridin-4(3H,5H)-ones and related compounds from reaction of 3-carbamoyl-2-iminochromens with methyl ketones

“…In cases in which it was clear that products were being formed relatively quickly, these were collected a t 2-hourly intervals. The nitrile products (7) did not always crystallise readily, and accordingly in a few cases it was necessary to remove the solvent and recrystallise the residual gum from methanol. The proportions of the products varied according to the substituents and, to some extent, the length of heating.…”

Synthesis of 4-aryl-6-phenyl-3-cyano-2-pyridones Using l-Proline as an Organocatalyst

“…In addition, 4,6-diaryl-3-cyano-2-pyridones were prepared by the reaction between 1,3-diaryl-2-propen-1-ones and cyanoacetamide using powdered KOH under microwave irradiation [23]. One of the less explored synthesis of 4-(substituted phenyl)-6-phenyl-3-cyano-2-pyridones is their synthesis from ethyl 2-cyano-3-(substituted phenyl) acrylates [24][25][26][27][28][29][30][31][32][33][34].…”