Regio- and Chemoselective Deprotection of Primary Acetates by Zirconium Hydrides

Abstract : A combination of DIBAL-H and Cp2ZrCl2 is shown to promote the regioselective cleavage of primary acetates on a broad scope of substrates, ranging from carbohydrates to terpene derivatives, with a high tolerance toward protecting groups and numerous functionalities found in natural products and bioactive compounds. Apart from providing highly valuable building blocks in only two steps from biosourced raw materials, this selective de-O-acetylation should also be strongly helpful to solve selectivity issues in organic synthesis.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02197282
Contributeur : Madeleine Roux-Merlin <>
Soumis le : mardi 30 juillet 2019 - 11:31:09
Dernière modification le : mercredi 13 novembre 2019 - 10:20:04

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Marine Gavel, Thibaut Courant, Antoine Yvan Philippe Joosten, Thomas Lecourt. Regio- and Chemoselective Deprotection of Primary Acetates by Zirconium Hydrides. Organic Letters, American Chemical Society, 2019, 21 (7), pp.1948-1952. ⟨10.1021/acs.orglett.8b03947⟩. ⟨hal-02197282⟩

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