高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (8): 1100.

• 研究简报 • 上一篇    下一篇

α-羧基烯酮环二硫代缩醛化学(Ⅷ)——以叔丁醇钾为碱合成脂肪族α-羰基烯酮环二硫代缩醛类化合物

刘群, 朱再明, 杨智蕴, 徐柏玲, 赵洪武   

  1. 东北师范大学化学系, 长春 130024
  • 收稿日期:1992-10-30 修回日期:1993-04-29 出版日期:1993-08-24 发布日期:1993-08-24
  • 通讯作者: 刘群.
  • 作者简介:第一作者:男, 34岁, 硕士, 副教授.

The Chemistry of α-Oxo Ketene Cyclic Dithioacetals(Ⅷ) ——Studies on the Synthesis of Aliphatic α-Oxo Ketene Cyclic Dithioacetals with Potassium tert-Butoxide as Base

LIU Qun, ZHU Zai-Ming, YANG Zhi-Yun, XU Bai-Ling, ZHAO Hong-Wu   

  1. Department of Chemistry, Northeast Normal University, Changchun, 130024
  • Received:1992-10-30 Revised:1993-04-29 Online:1993-08-24 Published:1993-08-24

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关键词: 脂肪族&alpha, -羰基烯酮环二硫代缩醛, 叔丁醇钾, 合成

Abstract: Ten title compounds were synthesized starting from aliphatic ketones with potassium tert-butoxide as the base.The yields are strongly dependent on the concentration of the base and solvents used.Lower concentration is favorable to raising the yields.When the concentration of the base was 0.4 mol/L, the best yield was obtained.The solvent mixed with benzene and DMFfavored the increase of the yields of products with cyclic ketones as the substrates.For the IRspectra, the carbonyl absorptions of compounds 1 are normally lower than 1647 cm-1.This might result from the strong conjugation in compound 1.Among the products, 1d-1j are new compounds.

Key words: Aliphatic a-oxo ketene cyclic dithioacetals, Potassium tert-butoxide, Synthesis

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