Catalysis Letters

, Volume 149, Issue 2, pp 574–579 | Cite as

Organocatalyzed cross-dehydrogenative coupling for C(sp3)–O bonds formation: a rapid access to α-aminoxyl isochromans

  • Yuli Zhou
  • Jingwen Chen
  • Ahmed Ali Elsayed
  • Zhiguo ZhangEmail author
  • Zongbi Bao
  • Qiwei Yang
  • Yiwen Yang
  • Qilong Ren


Tetrabutyl ammonium iodide catalyzed cross-dehydrogenative coupling reaction between α-C(sp3)–H of isochromans and N-hydroxyphathalimide has been achieved using tert-butylhydroxyperoxide as the terminal oxidant. This method offers rapid access to prevalent α-aminoxyl isochroman architectures. A diverse of synthetic isochromans was tolerated with this protocol, giving the corresponding product in moderate to good yields.

Graphical Abstract


Organocatalysis α-Aminoxyl isochromans C–O bond formation TBAI/TBHP 



We are grateful for financial support from the National Key R&D Program of China (Grant Number 2016YFA0202900), the National Natural Science Foundation of China (Grant Numbers 21878266, 21722609), the Fundamental Research Funds for the Central Universities (Grant Number 2018FZA4021).

Supplementary material

10562_2018_2640_MOESM1_ESM.pdf (2.5 mb)
Supplementary material 1 (PDF 2524 KB)


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Yuli Zhou
    • 1
  • Jingwen Chen
    • 1
  • Ahmed Ali Elsayed
    • 1
    • 2
  • Zhiguo Zhang
    • 1
    Email author
  • Zongbi Bao
    • 1
  • Qiwei Yang
    • 1
  • Yiwen Yang
    • 1
  • Qilong Ren
    • 1
  1. 1.Key Laboratory of Biomass Chemical Engineering of Ministry of Education, College of Chemical and Biological EngineeringZhejiang UniversityHangzhouChina
  2. 2.Department of PhotochemistryNational Research CentreGizaEgypt

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