Ullmann-type N-arylation of anilines with alkyl(aryl)sulfonium salts?
Chemical Communications Pub Date: 2019-09-10 DOI: 10.1039/C9CC06535K
Abstract
A palladium/copper-cocatalyzed Ullmann-type N-arylation of anilines using alkyl(aryl)sulfonium triflates as arylation reagents has been accomplished. The reaction enabled Caryl–S bond cleavage over Calkyl–S bond breakage of alkyl(aryl)sulfoniums by Pd(P(tBu)3)2/CuI and gave the corresponding N-arylated products in good to high yields. It was also significant that the reactions of aniline with asymmetric butyl(mesityl)(aryl)sulfonium triflates showed excellent selectivity, in which the aryl groups other than the bulky and electron-rich mesityl moieties were transformed.
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Journal Name：Chemical Communications
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CAS no.: 89640-58-4
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