高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (2): 257.

• 研究简报 • 上一篇    下一篇

一锅煮法合成α,α-双酰基和α-酰基-α-烷氧羰基烯酮环氧硫缩酮

张殊佳, 刘群, 谢忠巍, 邱雪飞, 迪丽菲嘎尔, 张前, 刘景福   

  1. 东北师范大学化学系, 长春, 130024
  • 收稿日期:1996-04-26 出版日期:1997-02-24 发布日期:1997-02-24
  • 通讯作者: 刘群.
  • 作者简介:张殊佳, 女, 32岁, 硕士, 副教授, 现在浙江大学化学系工作.
  • 基金资助:

    国家教育委员会优秀年轻教师基金

A Novel Synthesis of α,α-Dicarbonyl andα-Oxo-α-alkoxide Cyclic O,S-Ethylene Acetales

ZHANG Shu-Jia, LIU Qun, XIE Zhong-Wei, QIU Xue-Fei, Dilifeiger, ZHANG Qian, LIU Jing-Fu   

  1. Department of Chemistry, Northeast Normal University, Changchun, 130024
  • Received:1996-04-26 Online:1997-02-24 Published:1997-02-24

关键词: &alpha, -氧代烯酮环氧硫缩酮, 合成, &alpha, -氧代烯酮二硫代缩酮, 2-溴乙醇

Abstract: Anew method for the synthesis of the tit1e compounds 6 is described in this paper.Compounds 6 were obtained by an one-pot reaction process from β-dione and its analogues, 2-bromoethanol and carbon disulfide with potassium carbonate as the base.The possible mechanism is discussed.In this mechanism, a monoanion intermediate 3 is proposed, it reacts with 2-bromoethanol by a sequential nucleophilic and electrophilic reaction process to build the key intermediate 5.6 is formed by the elimination of hydrosulfide from 5.

Key words: α-Oxo ketene cyclic O, S-ethylene acetals, Synthesis, α-Oxo ketene dithioacetals, 2-Bromoethanol

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