Synthesis 2021; 53(09): 1605-1618
DOI: 10.1055/a-1337-5153
paper

Homogeneous Palladium-Catalyzed Selective Reduction of 2,2′-Biphenols Using HCO2H as Hydrogen Source

Ruoling Li
,
Chenchen Li
,
Wen Yang
,
Wanxiang Zhao
This project was supportedby National Natural Science Foundation of China (Grant Nos. 21702056, 21971059, and 21702055), Hunan Provincial Natural Science Foundation of China (Grant No. 2020JJ5040), National Program for Thousand Young Talents of China, and Fundamental Research Funds for the Central Universities.


Abstract

An efficient homogeneous palladium-catalyzed selective deoxygenation of 2,2′-biphenols by reduction of aryl triflates with HCO2H as the hydrogen source is reported. This protocol complements the current method based on heterogeneous Pd/C-catalyzed hydrogenation with hydrogen gas. This process provided the reduction products in good to excellent yields, which could be readily converted to various synthetically useful molecules, especially ligands for catalytic synthesis.

Supporting Information



Publication History

Received: 28 October 2020

Accepted after revision: 15 December 2020

Accepted Manuscript online:
15 December 2020

Article published online:
18 January 2021

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