Chinese Journal of Organic Chemistry ›› 2024, Vol. 44 ›› Issue (6): 1920-1928.DOI: 10.6023/cjoc202312012 Previous Articles     Next Articles

ARTICLES

Brønsted酸催化萘酚与丙炔醇的环化反应合成苯并色烯

赵聘a, 尚旭伟b, 罗清清b, 梁梦雨b, 符媛b, 张明亮b,*(), 刘澜涛a,b,*()   

  1. a 郑州大学化学学院 郑州 450001
    b 商丘师范学院化学化工学院 河南省药物绿色合成工程研究中心 河南商丘 476000
  • 收稿日期:2023-12-13 修回日期:2024-02-23 发布日期:2024-03-12
  • 基金资助:
    国家自然科学基金(21572126); 国家自然科学基金(21901152); 河南省科技攻关(202102310003); 河南省商丘市人才支持计划领军人才(SQRC202212004)

Synthesis of Benzochromenes via Brønsted Acid Catalyzed Annulation of Naphthol with Propargyl Alcohols

Pin Zhaoa, Xuwei Shangb, Qingqing Luob, Mengyu Liangb, Yuan Fub, Mingliang Zhangb,*(), Lantao Liua,b,*()   

  1. a College of Chemistry, Zhengzhou University, Zhengzhou 450001
    b Henan Engineering Laboratory of Green Synthesis for Pharmaceuticals, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000
  • Received:2023-12-13 Revised:2024-02-23 Published:2024-03-12
  • Contact: * E-mail: liult05@iccas.ac.cn;moonlightzhang@163.com
  • Supported by:
    National Natural Sciences Foundation of China(21572126); National Natural Sciences Foundation of China(21901152); Key Scientific and Technological Project of Henan Province(202102310003); Leading Talent Funding Project of Shangqiu Talent Support Plan in Henan Province(SQRC202212004)

Benzeochromenes, also named as naphthopyrans, are widely found in natural products, bioactive molecules and organic functional materials. A simple and efficient strategy for the synthesis of benzeochromenes with propargyl alcohols and β-naphthols under mild conditions was developed, and a series of benzeochromenes were prepared in excellent yields. This protocol has the advantages of broad scope, functional group diversity and mild conditions with H2O as the only byproduct. Moreover, ease of operation and gram-scale preparation portend the practical application.

Key words: naphthopyran, benzeochromene, propargyl alcohols, 2-naphthol