SCI和EI收录∣中国化工学会会刊

Chin.J.Chem.Eng. ›› 2015, Vol. 23 ›› Issue (8): 1416-1420.DOI: 10.1016/j.cjche.2015.04.020

• RESEARCH NOTES • Previous Articles    

One-pot three-component synthesis of tetrahydrobenzo[b]pyrans catalyzed by cost-effective ionic liquid in aqueous medium

Jianguo Yang1, Shuo Liu2, Huanan Hu1, Shibin Ren1, Anguo Ying1   

  1. 1 School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China;
    2 College of Chemistry, Nankai University, Tianjin 300071, China
  • Received:2014-12-29 Revised:2015-04-14 Online:2015-09-26 Published:2015-08-28
  • Contact: Anguo Ying
  • Supported by:

    Supported by the Zhejiang Provincial Natural Science Foundation of China (LY15B060002), the National Natural Science Foundation of China (21106090, 21272169, 21471110), and the National Undergraduate Programs for Innovation and Entrepreneurship (201410350018).

One-pot three-component synthesis of tetrahydrobenzo[b]pyrans catalyzed by cost-effective ionic liquid in aqueous medium

Jianguo Yang1, Shuo Liu2, Huanan Hu1, Shibin Ren1, Anguo Ying1   

  1. 1 School of Pharmaceutical and Chemical Engineering, Taizhou University, Taizhou 318000, China;
    2 College of Chemistry, Nankai University, Tianjin 300071, China
  • 通讯作者: Anguo Ying
  • 基金资助:

    Supported by the Zhejiang Provincial Natural Science Foundation of China (LY15B060002), the National Natural Science Foundation of China (21106090, 21272169, 21471110), and the National Undergraduate Programs for Innovation and Entrepreneurship (201410350018).

Abstract: A simple and efficient method is proposed for the synthesis of tetrahydrobenzo[b]pyrans with aromatic aldehydes, active methylene compounds, and dimedone using basic ionic liquid catalyst in water. The procedure offers several advantages including short reaction time, good yield, easy procedure, and good recyclability of catalysts, which may be a practical alternative to conventional processes for preparation of 4-hpyrans.

Key words: Tetrahydrobenzo[b]pyrans, Ionic liquid, Recyclability

摘要: A simple and efficient method is proposed for the synthesis of tetrahydrobenzo[b]pyrans with aromatic aldehydes, active methylene compounds, and dimedone using basic ionic liquid catalyst in water. The procedure offers several advantages including short reaction time, good yield, easy procedure, and good recyclability of catalysts, which may be a practical alternative to conventional processes for preparation of 4-hpyrans.

关键词: Tetrahydrobenzo[b]pyrans, Ionic liquid, Recyclability