Synlett 2021; 32(15): 1542-1546
DOI: 10.1055/s-0040-1707817
cluster
Modern Nickel-Catalyzed Reactions

Nickel-Catalyzed Negishi-Type Arylation of Trialkylsulfonium Salts

Hiroko Minami
,
Keisuke Nogi
,
This work was supported by the Japan Society for the Promotion of Science (JSPS KAKENHI, Grant Numbers JP18H04254, JP18H04409, JP19H00895, and JP18K14212) as well as the Japan Science and Technology Agency (JST CREST, Grant Number JPMJCR19R4).


Abstract

Negishi-type arylation of trialkylsulfonium salts with arylzinc reagents has been accomplished under nickel catalysis. The use of cyclohexanethiol as an additional ligand was found to be particularly important to promote C–S cleavage. The present reaction accommodates one-pot arylation of dialkyl sulfides by combining with S-methylation with MeOTf. Mechanistic experiments suggest that C–S cleavage would proceed via single-electron transfer (SET) to generate the most stable carbon-centered radical and that the thiolate ligand would promote the C–S cleavage and radical recombination step.

Supporting Information



Publication History

Received: 10 April 2020

Accepted: 28 April 2020

Article published online:
16 June 2020

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