Synthesis 2023; 55(11): 1752-1763
DOI: 10.1055/a-1850-3687
paper
Special Issue dedicated to Prof. Cristina Nevado, recipient of the 2021 Dr. Margaret Faul Women in Chemistry Award

Palladium-Catalyzed Cross-Coupling of Cyanohydrins with Aryl Bromides: Construction of Biaryl Ketones

Jadab Majhi
a   Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, K7L 3N6, Canada
,
Bohang Zhou
a   Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, K7L 3N6, Canada
b   College of Chemistry and Pharmacy, Northwest A&F University, Yangling District, Xianyang, Shaanxi 712100, P. R. of China
,
Yuxin Zhuang
a   Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, K7L 3N6, Canada
c   College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Rd, Hangzhou, Zhejiang 310058, P. R. of China
,
Mai-Jan Tom
a   Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, K7L 3N6, Canada
,
Huifang Dai
a   Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, K7L 3N6, Canada
d   School of Pharmacy, Fudan University, 826 Zhangheng Rd, Pudong Zone, Shanghai 201203, P. R. of China
,
a   Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, K7L 3N6, Canada
e   Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, P. R. of China
› Author Affiliations
We sincerely thank the Natural Sciences and Engineering Research Council (NSERC) for a Discovery Grant and Queen’s University for generous­ financial support. NSERC is also thanked for supporting a Tier 1 Canada Research Chair (P.A.E.). We also acknowledge the Huxiang­ High-Level Talent Gathering Project from the Hunan Provincial Science and Technology Department (Grant No. 2020RC5001). Additionally, we thank Queen’s University for R. S. McLaughlin Fellowships (M.-J.T.) and the Government of Ontario for a Queen Elizabeth II Graduate Scholarship in Science and Technology (M.-J.T.) and Ontario Graduate Scholarships (M.-J.T.).


Abstract

The palladium-catalyzed cross-coupling of the lithium anion of aryl tert-butyldimethylsilyl-protected cyanohydrins with aryl bromides followed by in situ deprotection with fluoride ion provides a convenient and versatile approach to biaryl ketones. This protocol represents the first example of a palladium-catalyzed arylation of a cyanohydrin, which functions as an acyl anion equivalent. Hence, in contrast to classical cross-coupling reactions, the pronucleophile component is incorporated in the product to permit further functionalization. We then highlight the synthetic utility of the new method with applications to bioactive biaryl ketones and the construction of a triaryl diketone that has been used to prepare an extended tetrathiafulvalene.

Supporting Information



Publication History

Received: 07 May 2022

Accepted after revision: 12 May 2022

Accepted Manuscript online:
12 May 2022

Article published online:
20 July 2022

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