有机化学 ›› 2000, Vol. 20 ›› Issue (1): 72-80. 上一篇    下一篇

研究论文

3-(2-噁二唑啉基)-色酮类化合物的合成研究

于建新;刘方明;鲁文杰;李燕萍;糟新民;刘育亭;刘丛   

  1. 新疆大学化学系.新疆(830046);新疆师范大学化学系.乌鲁木齐(830002)
  • 发布日期:2000-02-25

Synthesis of some substituted 3-(3'-acetyl-5'-aryl-1',3',4'-oxadiazoline-2'-yl)-chromones

Yu Jianxin;Liu Fangming;Lu Wenjie;Li Yanping;Zao Xinmin;Liu Yuting;Liu Cong   

  1. Xinjiang Univ, Dept Chem.Xinjiang(830046);Xinjiang Normal Univ., Dept Chem.Wulumuqi(830002)
  • Published:2000-02-25

报道了取代的邻羟基苯乙酮(1a~1e)经Vilsmeier-Haack反应一步制得3-醛基色酮(2a~2e),2a~2e与取代的芳酰肼(3a~3c)缩合制得15个酰腙类化合物(4a~4o),4a~4o在醋酸酐作用下关环得15个3-(2-噁二唑啉基)-色酮(5a~5o),并通过元素分析,IR,^1^HNMR和MS谱数据确证了上述化合物的结构。

关键词: 色酮P, 噁二唑啉, 酰肼P, 苯乙酮P, 红外分光光度法, 质子磁共振谱法, 质谱法

By the Vilsmeier-Haack reaction, chromone-3-carboxaldehydes (2a ~2e) swere prepared in high yields, whichreacted regiospecifically with substituted aroyl hydrazines (3a~3c) in EtOH containing AcOH at room temperature to give 3-(substituted aroly hydrazone)chromones (4a~4o). 4a~4o could be readily converted to substituted 3-(3-acetyl-5-aryl-1,3,4-oxadiazoline-2(-yl)-chromones (5a~5o) in good yields by refluxing with Ac2O. Their structures were established by elemental analysis, IR, ^1H NMR and MS spectra.

Key words: CHROMONE P, HYDRAZIDE P, ACETOPHENONE P, INFRARED SPECTROPHOTOMETRY, PROTON MAGNETIC RESONANCE SPECTROMETRY, MASS SPECTROGRAPHY

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