2020
DOI: 10.3762/bjoc.16.56
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Copper-catalyzed O-alkenylation of phosphonates

Abstract: Copper catalysis allows the direct oxygen alkenylation of dialkyl phosphonates with alkenyl(aryl)iodonium salts with selective transfer of the alkenyl group. This novel methodology proceeds with a wide range of phosphonates under mild conditions and gives straightforward access to valuable enol phosphonates in very good yields. 611

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Cited by 4 publications
(2 citation statements)
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“…This strategy was then extended by Fananas-Mastral to the direct alkenylation of phosphonates by using unsymmetric styryl(aryl)iodonium reagents (Scheme 109) [150]. As usual, the presence of a non-transferable mesityl ligand on the asymmetric iodonium salt was crucial for the outcome of the reaction.…”
Section: Hypervalent Iodine As Reagent In C-o Bond Formationmentioning
confidence: 99%
“…This strategy was then extended by Fananas-Mastral to the direct alkenylation of phosphonates by using unsymmetric styryl(aryl)iodonium reagents (Scheme 109) [150]. As usual, the presence of a non-transferable mesityl ligand on the asymmetric iodonium salt was crucial for the outcome of the reaction.…”
Section: Hypervalent Iodine As Reagent In C-o Bond Formationmentioning
confidence: 99%
“…Mechanistically, Cu(I) catalyst adds to mesitylvinyliodonium triflate to give vinylcopper(III) species. Then, alkenylcopper(III) species react with dialkyl phosphonate; resulting phosphonium intermediate which undergo Arbuzov‐type substitution of alkyl group and lastly, reductive elimination generates enol phosphate with regeneration of Cu(I) catalyst [27] …”
Section: Transformations Involving Hypervalent Iodine Reagents and 1s...mentioning
confidence: 99%