高等学校化学学报

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (5): 426.

• 研究简报 • 上一篇    下一篇

聚乙二醇相转移催化作用下Darzens酯缩合

熊丽曾, 俞凌翀   

  1. 北京师范大学化学系
  • 收稿日期:1985-01-24 出版日期:1986-05-24 发布日期:1986-05-24

Polyethylene Glycols Used as Phase Transfer Catalyst for Darzens Glycidic Ester Condensation

Xiong Liceng, Yu Lingchong   

  1. Department of Chemistry, Beijing Normal University, Beijing
  • Received:1985-01-24 Online:1986-05-24 Published:1986-05-24

PDF (PC)

被引次数

16

摘要： 环氧酸酯缩合作用通常在无水条件下进行[1],不能在应用氢氧化钠水溶液的相转移催化条件下进行。因为卤代酸酯在此情况下发生水解。M.Makosza在无水碳酸钾和18-冠醚-6的两相体系中合成了2-苯基环氧酸乙酯,b.p.99-109℃/0.5mmHg产率72%[2]。

Abstract: The Darzens glycidic ester condensation of aldehydes can be carried out in moderate yield under solid-liquid phase transfer condition with potassium carbonate as base, toluene as solvent and polyethylene glycol-600 as phase transfer catalyst. The yield of aromatic glycidic ester is 50-77%.

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