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    Chlorination of sucrose-6-esters
    1.
    发明授权
    Chlorination of sucrose-6-esters 有权

    公开(公告)号：US10081651B2

    公开(公告)日：2018-09-25

    申请号：US15502372

    申请日：2015-06-16

    申请人： Tate & Lyle Technology Limited

    发明人： Thomas Eilers ,  Halil Aktas

    IPC分类号： C07H5/02 ,  C07H13/04

    CPC分类号： C07H5/02 ,  C07H13/04

    摘要： There is provided a method for the chlorination of a sucrose-6-acylate to produce a 4,1′,6′-trichloro-4,1′,6′-trideoxy-galactosucrose-6-acylate, wherein said method comprises the following steps (i) to (v): (i) providing a first component comprising sucrose-6-acylate; (ii) providing a second component comprising a chlorinating agent; (iii) combining said first component and said second component to afford a mixture; (iv) heating said mixture for a heating period in order to provide chlorination of sucrose-6-acylate at the 4, 1′ and 6′ positions thereof; (v) quenching said mixture to produce a 4,1′,6′-trichloro-4,1′,6′-trideoxy-galactosucrose-6-acylate; wherein at least one of said first component and said second component comprises a reaction vehicle, and said reaction vehicle comprises a tertiary amide; and wherein said mixture comprises a cosolvent during a least a portion of the heating period of step (iv), wherein said cosolvent comprises dimethylacetamide (DMAc).

    Chlorination of sucrose-6-esters
    2.
    发明授权
    Chlorination of sucrose-6-esters 有权

    公开(公告)号：US10227367B2

    公开(公告)日：2019-03-12

    申请号：US15104620

    申请日：2014-12-15

    申请人： Tate & Lyle Technology Limited

    发明人： Thomas Eilers ,  Halil Aktas

    IPC分类号： C07H1/06 ,  C07H5/02 ,  C07H13/04 ,  C07B39/00 ,  C07C19/08 ,  C07D333/48 ,  C07H1/00

    摘要： There is provided a method for the chlorination of a sucrose-6-acylate to produce a 4,1′,6′-trichloro-4,1′,6′-trideoxy-galactosucrose-6-acylate, wherein said method comprises the following steps (i) to (v): (i) providing a first component comprising sucrose-6-acylate; (ii) providing a second component comprising a chlorinating agent; (iii) combining said first component and said second component to afford a mixture; (iv) heating said mixture for a heating period in order to provide chlorination of sucrose-6-acylate at the 4, 1′ and 6′ positions thereof; (v) quenching said mixture to produce a 4,1′,6′-trichloro-4,1′,6′-trideoxy-galactosucrose-6-acylate; wherein at least one of said first component and said second component comprises a reaction vehicle, and said reaction vehicle comprises a tertiary amide; and wherein said mixture comprises a cosolvent during a least a portion of the heating period of step (iv), wherein said cosolvent comprises perfluorooctane.