Researchers are common within chemical engineering and are often tasked with creating and developing new chemical techniques, frequently combining other advanced and emerging scientific areas. Electric Literature of 24621-61-2,
The enantioface-differentianing hydrogenation of 4-hydroxy-2-butanone (I) to 1,3-butanediol (II) was conduced with asymmetrically modified metal catalysts.Among the modified catalysts examined, Raney nickel modified with a solution containing tartaric acid and NaBr (TA-NaBr-MRNi) gave the best results with respect to the optical and chemical yields. (R)-II, an optical purity of 69 percent was obtained in a quantitative chemical yeld by the use of (R,R)-TA-NaBr-MRNi. (S)-II was also obtained by the use of (S,S)-TA-NaBr-MRNi.A simple method for the preparation of optically pure (S)- and (R)-II from the hydrogenation product was also developed.
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Reference：
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate