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    POLYMERIZABLE UNSATURATED GROUP-CONTAINING CYCLODEXTRIN DERIVATIVE
    5.
    发明公开
    POLYMERIZABLE UNSATURATED GROUP-CONTAINING CYCLODEXTRIN DERIVATIVE 审中-公开

    公开(公告)号：US20240043573A1

    公开(公告)日：2024-02-08

    申请号：US18006926

    申请日：2021-07-21

    申请人： KYOEISHA CHEMICAL CO., LTD.

    发明人： Yuya TAKAHASHI ,  Bunsho KURE ,  Tsuyoshi YAMAGUCHI ,  Naomi TAKENAKA ,  Yoshinori TAKASHIMA ,  Akira HARADA ,  Motofumi OSAKI

    IPC分类号： C08B37/16

    CPC分类号： C08B37/0012

    摘要： The present invention provides a polymerizable unsaturated group-containing cyclodextrin derivative, which can be efficiently prepared with a higher yield and a higher purity, and which can be mass-produced.
    The polymerizable unsaturated group-containing cyclodextrin derivative is represented by the following general formula (1).




    (In the formula, R1 represents any one of



    (A) the following general formula (2)






    —R3—NH—R4   (2)





    (R3 is an alkylene group having 3 to 20 carbon atoms, may be linear or branched, and may have a substituent.
    R4 represents a (meth)acryloyl group or a vinyl group-containing alkyl group having 3 to 50 carbon atoms.)


    (B) the following general formula (3)






    —R5—NHCONH—R6   (3)





    (R5 is an alkylene group having 3 to 20 carbon atoms, may be linear or branched, and may have a substituent.
    R6 represents a (meth)acryloyloxyalkyl group having 4 to 50 carbon atoms or a vinyl group-containing alkyl group having 3 to 50 carbon atoms), or


    (C) the following general formula (4)






    —R5—OCONH—R6   (4)





    (R5 and R6 are the same as those described above.)






    R2 represents a hydrogen atom, an acyl group having 2 to 50 carbon atoms, or an alkyl group having 1 to 30 carbon atoms.
    Rc represents a group represented by the following general formula (5).




    (In the formula, R7's are the same as or different from each other, and each represent a hydrogen atom, an acyl group having 2 to 50 carbon atoms, an alkyl group having 1 to 30 carbon atoms, or —CONHR8 (R8 is an alkyl group having 1 to 20 carbon atoms), and 20% or more of R7's is any one of an acyl group having 2 to 50 carbon atoms, an alkyl group having 1 to 30 carbon atoms, or —CONHR8. x is an integer of 5 to 7))

    Simple and green method for preparation of acid modified cyclodextrin
    7.
    发明授权
    Simple and green method for preparation of acid modified cyclodextrin 有权

    公开(公告)号：US11840584B2

    公开(公告)日：2023-12-12

    申请号：US18122181

    申请日：2023-03-16

    申请人： Jiangnan University

    发明人： Chao Qiu ,  Jinpeng Wang ,  Yao Hu ,  Zhengyu Jin ,  Qianzhu Lin ,  Yaoqi Tian ,  Aiquan Jiao ,  Long Chen ,  Zhengjun Xie ,  Xing Zhou

    IPC分类号： C08B37/16 ,  B01J27/18

    CPC分类号： C08B37/0012 ,  B01J27/1806

    摘要： The present disclosure discloses a simple preparation method of green acid-modified cyclodextrin, belonging to the field of cyclodextrin modification. Cyclodextrin and succinic acid are mutually modified by an esterification reaction in the presence of catalyst, and acid-modified cyclodextrin with different modification degrees is obtained by controlling reaction time at a high temperature or under a microwave action. The prepared modified cyclodextrin does not involve the use of toxic and harmful reagents, the modification reaction is simple, green and controllable, and the loading capacity of the modified cyclodextrin to guest molecules is remarkably improved compared with the loading capacity of the original cyclodextrin, so that the modified cyclodextrin has great application potential in the health fields such as food, medicines, and cosmetics.