Patents Assigned to SHANGHAI OURCHEM BIO-TECHNOLOGY CO., LTD.
  • Publication number: 20250109098
    Abstract: A method for preparing a benzylamine derivative through amination of a benzylic C—H bond under visible light-induced nickel catalysis is provided. The method includes: weighing and adding an amination reagent, a ruthenium or iridium photosensitizer, a nickel catalyst, a Lewis acid, and a ligand according to a molar ratio to a reaction vessel; under an inert gas atmosphere, adding a solvent, stirring, adding a benzyl-containing alkylate, and irradiating with a visible light source to allow a full reaction; and conducting separation and purification to obtain the benzylamine derivative. The method involves cheap and easily-available raw materials, and has relatively-extensive substrate applicability. In addition, the method has advantages such as mild reaction conditions, a high yield of a target product, small pollution, and a simple reaction operation and post-treatment, and thus is suitable for industrial production.
    Type: Application
    Filed: December 4, 2023
    Publication date: April 3, 2025
    Applicant: SHANGHAI OURCHEM BIO-TECHNOLOGY CO., LTD.
    Inventors: Shaofang ZHOU, Congrui WU, Fang LING, Chunhua LIANG
  • Patent number: 11987549
    Abstract: A preparation method of a rhodium octanoate dimer includes the following steps: (1) mixing RhCl3 with an alkali metal octanoate uniformly to get a first solution; (2) adding a reductant into the first solution obtained from step (1), and heating for reflux reaction to get a second solution; (3) adding the second solution obtained from step (2) into deionized water while hot, continuing to stir, and performing a suction filtration to get a crude product; and (4) performing a primary washing, a secondary washing, a filtration, and a drying on the crude product obtained from step (3) to get a rhodium octanoate dimer as a green solid.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: May 21, 2024
    Assignee: SHANGHAI OURCHEM BIO-TECHNOLOGY CO., LTD.
    Inventors: Jianguo Qin, Cong Wang, Xin Sun, Fang Ling
  • Publication number: 20220315518
    Abstract: A preparation method of a rhodium octanoate dimer includes the following steps: (1) mixing RhCl3 with an alkali metal octanoate uniformly to get a first solution; (2) adding a reductant into the first solution obtained from step (1), and heating for reflux reaction to get a second solution; (3) adding the second solution obtained from step (2) into deionized water while hot, continuing to stir, and performing a suction filtration to get a crude product; and (4) performing a primary washing, a secondary washing, a filtration, and a drying on the crude product obtained from step (3) to get a rhodium octanoate dimer as a green solid.
    Type: Application
    Filed: December 11, 2020
    Publication date: October 6, 2022
    Applicant: SHANGHAI OURCHEM BIO-TECHNOLOGY CO., LTD.
    Inventors: Jianguo QIN, Cong WANG, Xin SUN, Wenhui ZHOU