Ni/Co-Catalyzed Homo-Coupling of Alkyl Tosylates
Keyword(s):
A direct reductive homo-coupling of alkyl tosylates has been developed by employing a combination of nickel and nucleophilic cobalt catalysts. A single-electron-transfer-type oxidative addition is a pivotal process in the well-established nickel-catalyzed coupling of alkyl halides. However, the method cannot be applied to the homo-coupling of ubiquitous alkyl tosylates due to the high-lying σ*(C–O) orbital of the tosylates. This paper describes a Ni/Co-catalyzed protocol for the activation of alkyl tosylates on the construction of alkyl dimers under mild conditions.
1984 ◽
Vol 25
(45)
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pp. 5107-5110
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2013 ◽
Vol 135
(25)
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pp. 9548-9552
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1985 ◽
Vol 26
(39)
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pp. 4691-4694
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1981 ◽
Vol 22
(38)
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pp. 3729-3732
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1989 ◽
pp. 1009
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