Diem Ferreira Xavier MC, Andia Sandagorda EM, Santos Neto JS, Schumacher RF, Silva MS. Synthesis of 3-selanylbenzo[
b]furans promoted by SelectFluor®.
RSC Adv 2020;
10:13975-13983. [PMID:
35498450 PMCID:
PMC9051628 DOI:
10.1039/d0ra01907k]
[Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 03/30/2020] [Indexed: 11/21/2022] Open
Abstract
A simple and practical protocol for the synthesis of 3-selanyl-benzo[b]furans mediated by the SelectFluor® reagent was developed. This novel methodology provided a greener alternative to generate 3-substituted-benzo[b]furans via a metal-free procedure under mild conditions. The intramolecular cyclization reaction was carried out employing an electrophilic selenium species generated in situ through the reaction between SelectFluor® and organic diselenides. The formation of this electrophilic selenium species (RSe-F) was confirmed by heteronuclear NMR spectroscopy, and its reactivity was explored.
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