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Radical-initiated alkene hydroauration as a route to gold(III) alkyls: an experimental and computational study

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Abstract

The hydroauration of functionalised 1-alkenes by the gold(III) hydride (C^NOMe^C)AuH is initiated by organic radicals and proceeds via (C^N^C)Au(II) radical intermediates following a bimolecular outer-sphere mechanism. The outcome of these reactions is determined by the stability of the gold-substituted radicals. The reaction is sensitive to steric as well as electronic factors; disubstituted alkenes and alkenes that form unstable radicals give product mixtures or are unreactive. As DFT calculations show, the reactions agree well with the calculated reaction enthalpies and the standard free energy change for the reaction of the gold(II) radical with the respective alkene.

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Original languageEnglish
Pages (from-to)2795-2803
JournalRSC Advances
Volume8
Issue number5
DOIs
Publication statusPublished - 12 Jan 2018
Peer-reviewedYes

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