Chemistry is traditionally divided into organic and inorganic chemistry. Safety of (S)-Butane-1,3-diol, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 24621-61-2
Access to (S)-2-Methyloxetane and the Precursor (S)-1,3-Butanediol of Hight Enantiomeric Purity
(S)-2-Methyloxetane (1) and its precursor (S)-1,3-butanediol (2) were prepared in low to moderate chemical yield with less than 0.5percent racemization from (S)-ethyl lactate (4) and from (2S,3S)-allothreonine (14b).For the first time the enantiomeric purities of both the starting material and the product (1) were carefully determined by high-precision capillary gas chromatography on optically active resolving stationary phases.The validity of the quadrant rule, correlating the relative configuration of alkyloxiranes with the order of elution from manganese(II) bis<(1R)-3-(heptafluorobutyryl)camphorate> (3) by complexation gas chromatography, is also confirmed for 2-methyloxetane (1).
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Reference£º
Synthesis and Crystal Structure of a Chiral?C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur¨Cnitrogen¨Coxygen ligand derived from aminothiourea and sodium?D-camphor-¦Â-sulfonate