作者:Sandip Chikhalikar、Vijay Bhawe、Madhukar Jachak、Maruti Ghagare
DOI:10.1002/ejoc.201100800
日期:2011.10
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
已开发出两种合成具有生物学重要性的吡啶-2(1H)-one 衍生物的替代方法。烯胺 1 与芳香胺在 HCl 水溶液中的行为导致在环境温度下形成取代的烯胺 2a-f。获得的产物烯胺 2a-f,在用 2,2,6-trimethyl-4H-1,3-dioxin-4-one 处理后,生成了 pyridin-2(1H)-one 衍生物 5a-f 以及不需要的副产物8a-f。然而,从 β-烯胺酮 3a-f 开始,独家形成吡啶-2(1H)-one 衍生物 5a-f,这是在升高的温度下由烯胺 1 和芳香胺成功合成的。