Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: (S)-Methyl 3-hydroxybutanoate, is researched, Molecular C5H10O3, CAS is 53562-86-0, about Challenging the scope of continuous, gas-phase reactions with supported ionic liquid phase (SILP) catalysts-Asymmetric hydrogenation of methyl acetoacetate.Quality Control of (S)-Methyl 3-hydroxybutanoate.
A supported ionic liquid phase (SILP) catalyst was tested in continuous gas phase asym. hydrogenation of Me acetoacetate (MAA); the catalyst is dibromo[3-(2,5-(2R,5R)-dimethylphospholanyl-1)-4-di-o-tolylphosphino-2,5-dimethylthiophene] ruthenium (RuLBr2). The ionic liquid is 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide [EMIMNTf2].
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Reference:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics