有机化学 ›› 1995, Vol. 15 ›› Issue (5): 499-504. 上一篇    下一篇

研究论文

由2-(1, 3-亚丙二硫基)亚甲基脂环酮出发合成共轭的烯酮硫缩醛

张长山;胡玉兰;刘群;陈咏梅;张珠佳   

  1. 东北师范大学化学系
  • 发布日期:1995-10-25

Synthesis of the conjugated ketene dithioacetals by 2- (1, 3-dithiopropylene) methylene aliphatic ketone

ZHANG CHANGSHAN;HU YULAN;LIU QUN;CHEN YONGMEI;ZHANG ZHUJIA   

  • Published:1995-10-25

2-(1, 3-亚丙二硫基)亚甲基脂环酮(2')与甲基、丁基、仲丁基Grignard试剂经1, 2-加成反应得产物3, 3在酸的催化下脱水生成共轭的烯酮硫缩醛类化合物4。本实验提供了一条经由α-羰基烯酮环二硫代缩醛类化合物合成在有机合成中有重要应用的共轭烯酮硫缩醛类化合物的新途径。

关键词: 亚丙二硫基亚甲基脂环酮, 格氏试剂, 红外分光光度法, 烯酮硫缩醛D 5, 甲基, 加成反应, 丁基, 元素分析, 质子磁共振谱法

Dehydration of the adducts 3 prepared by the 1, 2-addition between title com-pounds 2' with methyl, n-butyl, s-butyl Grignard reagents gives the corresponding conjugated ketene dithioacetals 4. The convertion from 2 to 4 provides a new and facile method for the prepa- ration of 4 a useful intermediate in organic synthesis.

Key words: INFRARED SPECTROPHOTOMETRY, METHYL GROUP, GRIGNARD REAGENT, ADDITION REACTION, ELEMENTAL ANALYSIS, BUTYL GROUP, PROTON MAGNETIC RESONANCE SPECTROMETRY

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