Synthesis 2022; 54(21): 4802-4809
DOI: 10.1055/a-1878-8272
paper

Synthesis of para-Quinone Methides via Oxidative Ring-Opening of Spiro-cyclopropanyl-cyclohexadienones

Authors

  • Chaoxing Cui

    a   College of Chemistry, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, P. R. of China
  • Jianli Wu

    c   Medical School of Huanghe S & T University, The 666th OfZijingshan South Road, Zhengzhou, 450006, P. R. of China
  • Xixi Song

    a   College of Chemistry, Zhengzhou University, No. 100 Science Avenue, Zhengzhou, 450001, P. R. of China
  • Miaomiao Li

    b   Division of Molecular Catalysis & Synthesis, Henan Institute of Advanced Technology, Zhengzhou University, Zhengzhou 450001, P. R. of China

This research was supported by the Key Scientific Research Project of Colleges and Universities in Henan Province (19A150049).


Graphical Abstract

Preview

Abstract

An efficient and simple IBX-promoted oxidative ring-opening of spiro-cyclopropanyl-cyclohexadienones was developed. Disubstituted para-quinone methides were obtained with good to excellent yields and high regioselectivity (33 examples, 45–90% yields). This convenient transformation provides a new method to construct significant para-quinone methides and features high efficiency, broad substrate scope, and good functional group compatibility

Supporting Information



Publication History

Received: 15 April 2022

Accepted after revision: 20 June 2022

Accepted Manuscript online:
20 June 2022

Article published online:
10 August 2022

© 2022. Thieme. All rights reserved

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany