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Access to Stable Quaternary Phosphiranium Salts by P-Alkylation and P-Arylation of Phosphiranes

Abstract : We report the preparation of phosphiranium salts by quaternarization of phosphiranes, a class of sensitive, highly strained and poorly nucleophilic cyclic phosphines. High yielding introduction of a varied set of alkyl groups including methylene ester arms was accomplished under mild conditions. A Cu-catalyzed electrophilic arylation of phosphiranes using diaryl iodonium reagents was also achieved to yield unprecedented P,P diaryl phosphiraniums salts with good efficiency.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02899695
Contributor : Carole Witulski-Alayrac <>
Submitted on : Tuesday, December 15, 2020 - 3:56:16 PM
Last modification on : Wednesday, January 6, 2021 - 7:55:07 AM

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Julien Gasnot, Clément Botella, Sébastien Comesse, Sami Lakhdar, Carole Alayrac, et al.. Access to Stable Quaternary Phosphiranium Salts by P-Alkylation and P-Arylation of Phosphiranes. SYNLETT, Georg Thieme Verlag, 2020, 31 (09), pp.883-888. ⟨10.1055/s-0040-1708000⟩. ⟨hal-02899695⟩

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