24621-61-2,Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps,and cheap raw materials.24621-61-2,A new synthetic method of this compound is introduced below.
To a solution of (S)+}1,3-butanediol (10.0 g, 0.110 mol), was added triphenylmethylchloride (33.0 g, 0.330 mol), 4-dimethylaminopyridine (1.40 g, 11.5 mmol) in CH2Cl/pyridine (1:1, 500 mL).Stirring was continued over 48 h. The solvent was removed, the mixture was diluted with ether, washed with brine and dried over Na2SO4. The organic solution was filtered and concentrated. Silica gel chromatography with (5% ethyl acetate/hexanes) produced a clear oil (24 g) in 70% yield.
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Reference£º
Patent; Bristol-Myers Squibb Company; Merck & Co. Inc.; US6967196; (2005); B1;,
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