Synthesis 2022; 54(20): 4426-4446
DOI: 10.1055/a-1848-3005
short review

Recent Progress on Transition-Metal-Mediated Reductive C(sp3)–O Bond Radical Addition and Coupling Reactions

Li Cheng
a   School of Materials Science and Engineering, Shanghai University, Shanghai 200444, P. R. of China
,
Quan Lin
a   School of Materials Science and Engineering, Shanghai University, Shanghai 200444, P. R. of China
,
Yunrong Chen
b   Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, Shanghai 200444, P. R. of China
,
Hegui Gong
b   Center for Supramolecular Chemistry and Catalysis and Department of Chemistry, Shanghai University, Shanghai 200444, P. R. of China
› Author Affiliations
Financial support of this work was provided by the National Natural Science Foundation of China (Grant No. 21871173).


Abstract

In this short review, we summarize the recent developments on thermo-driven C(sp3)–O bond radical scission methods and their applications in the construction of C(sp3)–C bonds via conjugate addition with activated double bonds and reductive coupling mediated by economic 3d metals, in particular nickel. We have arranged the review based on three approaches for C(sp3)–O bond radical scission (vide infra). After generating the radical intermediates, their subsequent transformation into C(sp3)–C bonds enabled by C(sp3)–O cross-electrophile coupling with carbon electrophiles is discussed in detail.

1 Introduction

2 Direct Single-Electron Transfer to a C(sp3)–O Bond

3 Radical Scission of Activated C(sp3)–O Bonds via Single-Electron Transfer to Protecting Groups

4 In Situ Activation of Alcohols

5 Summary and Outlook



Publication History

Received: 31 March 2022

Accepted after revision: 10 May 2022

Accepted Manuscript online:
10 May 2022

Article published online:
30 June 2022

© 2022. Thieme. All rights reserved

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany