4254-15-3,Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. (S)-Propane-1,2-diol,4254-15-3, This compound has unique chemical properties. The synthetic route is as follows.
General procedure: A 45percent solution of hydrogen bromide in acetic acid (33.0 g, 23.2 mL) was added dropwise over 10 min to 60.3 mmol optically active diol 4a-f with stirring and ice-cooling. The solution was stirred at 0 ¡ãC for 5 min, and next at room temperature for 45 min. Next, water (100 mL) was added, and the mixture was alkalized to pH 8 with solid Na2CO3. The solution was immediately extracted with ethyl ether (5 .x. 60 mL), and the combined extracts were dried over anhydrous Na2SO4. The ether was evaporated, and the product was distilled under reduced pressure or purified by silica gel column chromatography with gradient AcOEt-hexane 9:1.
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Reference£º
Article; Poterala, Marcin; Plenkiewicz, Jan; Tetrahedron Asymmetry; vol. 22; 3; (2011); p. 294 – 299;,
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