Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 4360-63-8, is researched, Molecular C4H7BrO2, about Iridium-catalyzed acid-assisted asymmetric hydrogenation of oximes to hydroxylamines, the main research direction is iridium catalyzed acid assisted asym hydrogenation oxime hydroxylamine.HPLC of Formula: 4360-63-8.
Asym. hydrogenations are among the most practical methods for the synthesis of chiral building blocks at industrial scale. The selective reduction of an oxime to the corresponding chiral hydroxylamine derivative remains a challenging variant because of undesired cleavage of the weak nitrogen-oxygen bond. We report a robust cyclometalated iridium(III) complex bearing a chiral cyclopentadienyl ligand as an efficient catalyst for this reaction operating under highly acidic conditions. Valuable N-alkoxy amines can be accessed at room temperature with nondetected overredn. of the N-O bond [e.g., (E)-I → (S)-II (97%, 97.5:2.5 er)]. Catalyst turnover numbers up to 4000 and enantiomeric ratios up to 98:2 are observed The findings serve as a blueprint for the development of metal-catalyzed enantioselective hydrogenations of challenging substrates.
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Reference:
1,3-Benzodioxole – Wikipedia,
Dioxole | C3H4O2 – PubChem