SYNTHETIC REACTIONS OF COUMARIN-3-(4-AMINOSULFONYL)-CARBANILIDE DERIVATIVES WITH REACTIVE METHYLENE COMPOUNDS
作者:Ahmed M.M. El-saghier、El-Jazi I. Al-afaleq
DOI:10.1080/10426509808035678
日期:1998.8.1
Abstract Coumarin and benzo[f]coumarin–3–(4–aminosulfonyl)carbanilide derivatives 3a, b react with malononitrile or ethyl cyanoacetate to afford pyrido[3,4–c]– and pyrido[3,4–c]–benzo–[f]coumarinderivatives 4a–d. Compounds 4a–d were also prepared by treatment of arylidene–malononitrile or arylidenecyanoester derivatives 1a–d with ethyl 2–[4–aminosulfonyl carbanilide]acetate 2. 3a, b Derivatives were also