The role of organic electron donors in the initiation of BHAS base-induced coupling reactions between haloarenes and arenes

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Abstract

Coupling reactions between haloarenes and arenes (including heteroarenes) that are conducted without added transition metals but in the presence of KOtBu or NaOtBu, have been a topic of great interest since their discovery in 2008. Diverse organic structures act as additives that assist these reactions. These additives are converted into organic electron donors by the butoxide base and this leads to initiation of the coupling reactions, which proceed by radical chain mechanisms. This review provides an overview of the initiation stages of these reactions.
Original languageEnglish
Pages (from-to)1425-1438
Number of pages14
JournalScience China Chemistry
Volume62
Issue number11
Early online date17 Oct 2019
DOIs
Publication statusPublished - 30 Nov 2019

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Keywords

  • organic electron donor
  • benzyne
  • BHAS coupling
  • electron transfer
  • potassium tert-butoxide

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