5,6-Dimethoxy-8-(3-methylfuroxan-4-yl)-2-methylquinoline (1) and 5,6-dimethoxy-8-(3-methylfuroxan-4-yl)quinoline-2-carbaldehyde (2) were synthesized. The condensation of 1 with some nitrobenzaldehydes catalyzed by acetic acid under mild conditions gave four styrylquinolines (1a-d). The condensation of 2 with methyl phenyl ketones catalyzed by potassium hydroxide at room temperature afforded six polysubstituted
5,6-Dimethoxy-8-(3-methylfuroxan-4-yl)-2-methylquinoline ( 1 ) 和 5,6-dimethoxy-8-(3-methylfuroxan-4-yl)quinoline-2-carbaldehyde ( 2 )被合成了。在温和条件下, 1与一些硝基
苯甲醛在
乙酸的催化下缩合得到四种
苯乙烯基
喹啉 ( 1a-d )。在
氢氧化钾的催化下, 2与甲基苯基酮在室温下缩合得到六种多取代的 α,β-不饱和酮 ( 2a-f )。基于分析自旋-自旋分裂模式以及它们的 HSQC 和 HMBC 光谱中的交叉峰,分配所获得化合物的所有质子和碳信号。ROESY 谱分析表明,对于 ( E)-3-(quinolin-2-yl)-1-phenylprop-2-en-1-ones Hα 与 Hβ 相比在较弱的场中共振。