Regioselective [4+2] cycloaddition versus nucleophilic reactions of N-arylamino substituted 1,3-diaza-1,3-butadienes with ketenes: Synthesis of pyrimidinone and fused pyrimidinone derivatives. Part II
作者:Paramita D Dey、Arun K Sharma、Prasad V Bharatam、Mohinder P Mahajan
DOI:10.1016/s0040-4020(97)00872-7
日期:1997.10
3-aryl-6-phenyl-2-methylthio/secondaryamino substituted-4(3H)-pyrimidinones5 and 9 by the reactions of N-arylamino substituted 1,3-diaza-1,3-butadienes 1 and 6 with phenyl-, vinyl- and isopropenylketenes is explored. Semi emperical AM1 calculations on 1 and 6 are performed to explain the mechanism of their reaction with ketenes. Transformations of 5 and 9 leading to fused pyrimidinones 10 are also reported
通过N-芳基氨基取代的1,3-二氮杂-1,3-丁二烯1的反应合成3-芳基-6-苯基-2-甲硫基/仲氨基取代的4(3 H)-嘧啶酮5和9的新方法。探索了具有苯基,乙烯基和异丙烯基烯酮的6和6。进行了1和6的半皇后AM1计算,以解释它们与烯酮反应的机理。还报道了5和9的转化导致融合的嘧啶酮10。