4.5 Article

Development of PhSCF2CF2SiMe3 as a Tandem Anion and Radical Tetrafluoroethylene Equivalent: Preparation of Tetrafluoroethyl-Substituted Alcohols and Tetrafluorotetrahydropyrans

Journal

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2011, Issue 24, Pages 4528-4531

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201100667

Keywords

Fluorine; Alkylation; Nucleophilic addition; Radical reactions; Oxygen heterocycles

Funding

  1. Academy of Sciences of the Czech Republic [AVZ40550506]
  2. Grant Agency of the Czech Republic [207/11/0421]

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PhSCF2CF2SiMe3 (1) was developed as a tandem anion and radical tetrafluoroethylene equivalent for the introduction of a CF2CF2 moiety. Fluoride-initiated nucleophilic additions of 1 to carbonyl compounds provide the corresponding alcohol adducts 2. Reduction of 2 gives tetafluoroethyl-containing alcohols 3, whereas 6-exo radical cyclizations of allyl ethers 4 yield tetrafluorotetrahydropyrans 5.

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