作者:Fathy M. Abdelrazek、Nadia H. Metwally、Nazmi A. Kassab、Nehal A. Sobhy
DOI:10.1002/jhet.257
日期:2009.11
4‐phenylene)bis(5‐cyano‐6‐oxo‐2‐phenyl‐1,6‐dihydropyridine‐3‐carboxamide) 9a while 8b was cyclized to afford the 6‐thioxo analogue 9b. Compound 2 reacts with hydrazine derivatives 10a, 10b in refluxing ethanol/piperidine to afford the hydrazinylacrylamide derivatives 11a, 11b, which have been cyclized to the corresponding N,N′‐(1,4‐phenylene)bis(1H‐pyrazole‐4‐carboxamide) derivatives 12a, 12b, respectively. Compound
N,N '-(1,4-亚苯基)双(3-氧代-3-苯基丙酰胺)1与DMFDMA在回流的甲苯中反应,得到N,N '-(1,4-亚苯基)双(2-苯甲酰基-3) ‐(二甲基氨基)丙烯酰胺)2。化合物2与两倍过量的活性亚甲基试剂3a,3b,3c反应,分别得到pent-2-烯二酰胺衍生物7和8a,8b。化合物7和8a可以环化得到相同的化合物N,N ′-(1,4-亚苯基)双(5-氰基-6-氧代-2-苯基-1,6-二氢吡啶-3-羧酰胺)9a而将8b环化得到6-thioxo类似物9b。化合物2在回流的乙醇/哌啶中与肼衍生物10a,10b反应,得到肼基丙烯酰胺衍生物11a,11b,它们已被环化为相应的N,N ′-(1,4-亚苯基)双(1H-吡唑-4) -羧酰胺)衍生物分别为12a和12b。化合物2在回流的乙醇/哌啶中也与尿素衍生物13a,13b,13c反应,得到N,N′-(1,4-亚苯基)双(2-苯甲酰基-3-取代丙烯酰胺)衍生物14a