Chin. J. Org. Chem. ›› 2012, Vol. 32 ›› Issue (10): 1919-1924.DOI: 10.6023/cjoc201205028 Previous Articles     Next Articles



赵云辉a, 刘文杰a, 孙兴文a, 林国强b   

  1. a 复旦大学化学系 上海 200433;
    b 中国科学院上海有机化学研究所 中国科学院天然产物有机合成化学重点实验室 上海 200032
  • 收稿日期:2012-05-22 修回日期:2012-06-03 发布日期:2012-06-06
  • 通讯作者: 林国强
  • 基金资助:

    国家自然科学基金(Nos. 21072031, 20802009)、教育部博士点(新教师)基金(No. 200802461011)和上海市自然科学基金(No. 10ZR1404100)资助项目.

A Novel Strategy for the Synthesis of Benzofuran Derivatives

Zhao Yunhuia, Liu Wenjiea, Sun Xingwena, Lin Guoqiangb   

  1. a Department of Chemistry, Fudan University, Shanghai 200433;
    b Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai
  • Received:2012-05-22 Revised:2012-06-03 Published:2012-06-06
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Nos. 21072031, 20802009), the Ph.D. Programs Foundation of Chinese Ministry of Education (No. 200802461011) and the Shanghai Natural Science Foundation (No. 10ZR1404100).

A novel method for the synthesis of benzofuran analogues via condensation of 2-hydroxybenzaldehyde or 2-hydroxyphenyl ketone with methyl 4-bromocrotonate was reported. Moderate to good yield was obtained with cesium carbonate as base in DMF at 70 ℃. The new-generated double bond was (E)-configuration determined by X-ray diffraction. All benzofuran derivatives were determined by 1H NMR, 13C NMR and HRMS techniques.

Key words: benzofuran derivatives, α,β-unsaturated esters, cesium carbonate, methyl-4-bromocrotonate, salicylaldehyde