Synthesis of Pyridin??2 (1H)??one Derivatives: Temperature??Dependent Selectivity

S Chikhalikar, V Bhawe, M Jachak…

Index: Chikhalikar, Sandip; Bhawe, Vijay; Jachak, Madhukar; Ghagare, Maruti European Journal of Organic Chemistry, 2011 , # 30 p. 6085 - 6091

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Abstract

Abstract Two alternative methods for the synthesis of biologically important pyridin-2 (1H)- one derivatives have been developed. The behavior of enamine 1 with aromatic amines in an aqueous solution of HCl resulted in the formation of substituted enamines 2a–f at ambient temperature. The obtained product enamines 2a–f, upon treatment with 2, 2, 6- trimethyl-4H-1, 3-dioxin-4-one, generated pyridin-2 (1H)-one derivatives 5a–f along with ...