Chinese Journal of Organic Chemistry ›› 2004, Vol. 24 ›› Issue (12): 1598-1600. Previous Articles     Next Articles

水中“一锅法”合成2-氨基-3-氰基-4-芳基-7,7-二甲基-5-氧代-4H-5,6,7,8-四氢苯并[b]吡喃

靳通收*, 王爱卿, 张建设, 张伏生, 李同双   

  1. 河北大学化学与环境科学学院 保定 071002
  • 收稿日期:2004-03-01 修回日期:2004-05-08 接受日期:2004-06-11 发布日期:2022-09-20

One-Pot Synthesis of 2-Amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo- 4H-5,6,7,8-tetrahydrobenzo[b]pyran in Aqueous Medium

JIN Tong-Shou*, WANG Ai-Qing, ZHANG Jian-She, ZHANG Fu-Sheng, LI Tong-Shuang   

  1. College of Chemistry and Environmental Science, Hebei University, Baoding 071002
  • Received:2004-03-01 Revised:2004-05-08 Accepted:2004-06-11 Published:2022-09-20
  • Contact: *E-mail: fjjyxy@pub5.fz.fj.cn

A synthesis of 2-amino-3-cyano-4-aryl-7,7-dimethyl-5-oxo-4H-5,6,7,8-tetrahydrobenzo[b]pyrans from aromatic aldehyde, malononitrile and 5,5-dimethyl-1,3-dioxocyclohexane using 4-dodecylbenzenesulfonic acid as the catalyst (10 mol%) was described. Thismethod provided several advantages such as high yield, short reaction time, simple work-up procedure and environmental friendliness and the catalyst could bereusable.

Key words: tetrahydrobenzo[b]pyran, 4-dodecylbenzenesulfonic acid, aqueous medium