Application In Synthesis of (S)-Methyl 3-hydroxybutanoate. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Durability enhancement of chirally modified metallic nickel catalysts for enantioselective hydrogenation. Author is Osawa, Tsutomu; Kizawa, Tomoko; Lee, I-Yin Sandy; Ikeda, Shinji; Kitamura, Takayuki; Inoue, Yoshihisa; Borovkov, Victor.
Metallic Ni catalysts co-modified with (R,R)-tartaric acid and NaBr showed high enantioselectivity and durability upon hydrogenation of Me acetoacetate to give Me 3-hydroxybutyrate. The chirally modified catalyst prepared from 3-μm Ni powder was highly robust to maintain the hydrogenation activity and enantiodifferentiating ability for ca. 3 mo under dry condition, which enables long-term storage and hence facilitates com. distribution and industrial application.
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