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Ex Situ Formation of Methanethiol: Application in the Gold(I)-Promoted Anti-Markovnikov Hydrothiolation of Olefins

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A protocol for the Au-promoted anti-Markovnikov hydrothiolation of olefins using ex situ generated methanethiol is reported. The use of S-methylisothiourea hemisulfate salt as a solid precursor for methanethiol generation ensures a safe and reliable deliverance of a stoichiometric amount of this thiol. The procedure was shown to work for a broad range of olefins providing the corresponding hydrothiolated adduct in good to excellent yields. Mechanistic evaluations suggest that thiyl radicals are generated and that gold acts as an efficient but stable radical initiator.

Original languageEnglish
JournalAngewandte Chemie - International Edition
Pages (from-to)13887-13891
Number of pages5
Publication statusPublished - 1 Jan 2018

    Research areas

  • gold, hydrothiolation, radical pathway, reaction mechanisms, thioethers

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