Telomerization of 1,3-Butadiene with Carbon Dioxide: A Highly Efficient Process for δ-Lactone Generation

João M. Balbino, Jairton Dupont, J. Carles Bayón

Research output: Contribution to journalArticleResearchpeer-review

5 Citations (Scopus)

Abstract

© 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim A very efficient and selective telomerization of 1,3-butadiene with CO2 that leads to the δ-lactone (3-ethylidene-6-vinyltetrahydro-2H-pyran-2-one) was obtained using palladium acetate and tris(p-methoxyphenyl)phosphine as a catalyst in the presence of p-hydroquinone, N,N-diisopropylethylamine, and acetonitrile. A high turnover number of 4500 with 96 % selectivity to the δ-lactone was obtained after 5 h reaction at 70 °C. The reaction was deactivated by the presence of different 1,3-dialkylimidazolium ionic liquids, possibly by the formation of stable and inactive palladium-imidazole-2-ylidene carbenes.
Original languageEnglish
Pages (from-to)206-210
JournalChemCatChem
Volume10
Issue number1
DOIs
Publication statusPublished - 9 Jan 2018

Keywords

  • ionic liquids
  • lactones
  • palladium
  • polymerization
  • synthesis design

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