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    • 2. 发明申请
    • COMPOSITION COMPRISING 1-CHLORO-2,2-DIFLUOROETHANE
    • US20190300473A1
    • 2019-10-03
    • US16336305
    • 2017-09-25
    • Arkema France
    • Dominique GARRAITCharlotte HERDTCamille SCHERPEREEL
    • C07C211/15C07C19/12C07C21/18
    • Compositions including 1-chloro-2,2-difluoroethane, and the uses thereof. A composition including 1-chloro-2,2-difluoroethane and at least one additional compound selected from 1,1-difluoroethylene, 1,1,1-trifluoroethane, chlorotrifluoroethylene, 1-chloro-1-fluoroethylene, 1,1-difluoroethane, trans-1-chloro-2-fluoroethylene, 1-chloro-2,2,2-trifluoroethane, 1-chloro-1,2,2-trifluoroethane, cis-1-chloro-2-fluoroethylene, 2,2-dichloro-1,1,1-trifluoroethane, 1,1-dichloro-1-fluoroethane, 1,1-dichloroethylene, 1,2-dichloro-1-fluoroethylene, 1,1-dichloro-2-fluoroethylene, 1,2-dichloro-1,1-difluoroethane, 1,1-dichloro-2,2-difluoroethane, cis-1,2-dichloroethylene, 1,2,2-trichloro-1,1-difluoroethane, 1,1,1-trichloroethane, 1,1-dichloroethane, 1,1,2-trichloro-1-fluoroethane, trichloroethylene, 1,1,2-trichloro-2-fluoroethane, 1,1,2-trichloroethane, 1,1,2,2-tetrachloro-1-fluoroethane, tetrachloroethylene, 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, 1,1,1,2,2-pentachloroethane, tetrachloromethane, 1,2,2-trichloro-1-fluoroethylene, isomers of chloropropene, 1,2-dichloro-1-fluoroethylene, 1-chloro-2-fluoroethane, 1-chloro-1-fluoroethane, 1,1-chloro-2,2,2-trifluoroethane, 1,1,1-trichloro-2,2-difluoroethane, 1-chloroethylene, 1-fluoroethylene, H2O and HCl; the composition including at least 30% by weight of 1-chloro-2,2-difluoroethane, based on the total weight of the composition.
    • 7. 发明申请
    • METHOD FOR PREPARING LINEZOLID AND INTERMEDIATES THEREOF
    • 制备线粒体的方法及其中间体
    • US20110275805A1
    • 2011-11-10
    • US13144242
    • 2010-01-08
    • Ping WangQiangbiao PanYangzhou LiDaoliang Zheng
    • Ping WangQiangbiao PanYangzhou LiDaoliang Zheng
    • C07D413/10C07C211/15
    • C07D263/20
    • A method for preparing the linezolid (compound 1), which comprises the steps of: (1) carrying out the debenzyl reaction of compound 4 in solvent, to obtain the compound 5 or its acetate; (2) carrying out the acetylation reaction in the amino of the compound 5 or its acetate obtained in step (1) in solvent to obtain the compound 1. The intermediates to prepare the compound 1 and the acetate of compound 5. The present preparation method is easy to obtain the chiral materials and the chiral materials are cheap, the process and the post treatment are simple, the intermediate products and the end product are easy to be purified, the total yield is high, their purities are also high, this preparation method is easy to be used in the industry manufacture.
    • 一种制备利奈唑胺(化合物1)的方法,包括以下步骤:(1)在溶剂中进行化合物4的脱苄基反应,得到化合物5或其乙酸酯; (2)在溶剂中在步骤(1)中得到的化合物5或其乙酸的氨基进行乙酰化反应,得到化合物1.制备化合物1和化合物5的乙酸酯的中间体。本制备方法 手性材料易于获得,手性材料便宜,工艺和后处理简单,中间产品和最终产品易于纯化,总产率高,纯度高,该制剂 方法易于在工业制造中使用。