- 1,4-Phenylene-bis-((1-methyl-1H-pyrazol-5-yl)borinic 8-oxyquinolinate) as a photoredox catalyst in the atom transfer radical addition of iodoperfluoroalkanes to alkenyl groups bearing organoboron compounds
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The key photocatalytic properties of a transition-metal-free heteroleptic complex derived from 1,4-phenyldiboronic acid were evaluated. This compound was utilized in the atom transfer radical addition of iodoperfluoroalkanes to a series of alkenyl group b
- Kublicki, Marcin,Ogonowski, B?a?ej,Wieczorkowski, Dariusz,Durka, Krzysztof,Kli?, Tomasz
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- Diarylation of alkenes by a Cu-catalyzed migratory insertion/cross-coupling cascade
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A strategy for the catalytic diarylation of alkenes is presented. The method involves the migratory insertion of alkenes into an Ar-Cu complex to generate a new C(sp3)-Cu complex, which subsequently undergoes reaction with an aryl iodide to constitute a vicinal diarylation of an alkene. The method provides access to benzofuran- and indoline-containing products. Furthermore, highly diastereoselective examples are presented, allowing access to complex, stereochemically rich structures from simple alkene starting materials.
- You, Wei,Brown, M. Kevin
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supporting information
p. 14730 - 14733
(2014/12/11)
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- Mechanism of Arylation of Nucleophiles by Aryllead Triacetates. Part 1. Exclusion of a Pathway involving Aryl Free Radicals
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o-(Prop-2-enyloxy)phenyllead triacetate 6, which was obtained by treatment of the corresponding boronic acid with lead tetraacetate, has been shown to react with iodide and azide ions, 2,4,6-trimethylphenol, ethyl 2-oxocyclopentanecarboxylate, and the sodium salt of 2-nitropropane to give only those products which, in a formal sense, are derived by direct nucleophilic displacement of the Pb(OAc)3 group.The complete absence of 3-substituted dihydrobenzofurans among the products is strong evidence that aryl free radicals are not involved in the arylation reactions of aryllead triacetates.
- Morgan, Jacqueline,Pinhey, John T.
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p. 1673 - 1676
(2007/10/02)
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