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Activation of SF₅CF₃ by the N-Heterocyclic Carbene SIMes.

ABSTRACT: The greenhouse gas SF₅CF₃ was photochemically activated with SIMes (1,3-Bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene) to give 1,3-dimesityl-2,2-difluoroimidazolidine (SIMesF₂), and 1,3-dimesitylimidazolidine-2-sulfide, as well as the trifluoromethylated carbene derivative 1,3-dimesityl-2-fluoro-2-trifluoromethylimidazolidine. CF₃ radicals, as well as SF₄, serve presumably as intermediates of the conversions. In addition, the photochemical activation of SF₅CF₃ was performed in the presence of triphenylphosphine. The formation of triphenyldifluorophosphorane and triphenylphosphine sulfide was observed.

SUBMITTER: Herbstritt D

PROVIDER: S-EPMC10535660 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature

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Activation of SF5CF3 by the N-Heterocyclic Carbene SIMes.

Herbstritt Domenique D Tomar Pooja P Braun Thomas T

Molecules (Basel, Switzerland) 20230919 18

The greenhouse gas SF5CF3 was photochemically activated with SIMes (1,3-Bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidene) to give 1,3-dimesityl-2,2-difluoroimidazolidine (SIMesF2), and 1,3-dimesitylimidazolidine-2-sulfide, as well as the trifluoromethylated carbene derivative 1,3-dimesityl-2-fluoro-2-trifluoromethylimidazolidine. CF3 radicals, as well as SF4, serve presumably as intermediates of the conversions. In addition, the phot ...[more]

PMID: 37764468

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