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    Methods for forming aryl carbon-nitrogen bond using light
    6.
    发明授权
    Methods for forming aryl carbon-nitrogen bond using light 有权

    公开(公告)号：US11104653B2

    公开(公告)日：2021-08-31

    申请号：US16404255

    申请日：2019-05-06

    申请人： Colorado State University Research Foundation

    发明人： Garret Miyake ,  Chern-Hooi Lim ,  Max Kudisch ,  Bin Liu

    IPC分类号： C07D295/073 ,  C07D211/62 ,  C07D211/46 ,  C07C209/68 ,  C07D307/52 ,  C07D213/74 ,  C07D213/38 ,  C07D239/26 ,  C07D235/26 ,  B01J19/12 ,  B01J27/08 ,  B01J35/00 ,  C07D211/06

    摘要： The disclosure relates to a method for forming aryl carbon-nitrogen bonds and to photoreactors useful in these and other light-driven reactions. The method comprises contacting an aryl halide, such as 4-bromobenzotrifluoride, with an amine, such as morpholine, in the presence of a Ni salt catalyst solution and an optional base, thereby forming a reaction mixture; exposing the reaction mixture to light under reaction condition sufficient to produce the aryl carbon-nitrogen bonds, e.g., to give a product such as 4-(4-(trifluoromethyl)phenyl)morpholine. In certain embodiments, the amine may be present in a molar excess to the aryl halide. In certain embodiments, the Ni salt catalyst solution includes a Ni(II) salt and a polar solvent, wherein the Ni(II) salt is dissolved in the polar solvent. In certain embodiments, the reactions conditions include holding the reaction mixture at between about room temperature and about 80° C. for between about 1 hour and about 20 hours such that at least about 50% yield is obtained.

    GROUP TRANSFER POLYMERIZATION FOR THE PRODUCTION OF FUNCTIONAL MONOMERS
    7.
    发明申请
    GROUP TRANSFER POLYMERIZATION FOR THE PRODUCTION OF FUNCTIONAL MONOMERS 审中-公开

    公开(公告)号：US20200239626A1

    公开(公告)日：2020-07-30

    申请号：US16775755

    申请日：2020-01-29

    申请人： Colorado State University Research Foundation

    发明人： Garret Miyake ,  Ryan M. Pearson ,  Matthew D. Ryan

    IPC分类号： C08G61/12

    摘要： The present invention provides efficient processes for preparing brush polymers. In general, the process comprises three distinct reaction steps utilizing two separate catalysts. In the first step, the initiating compound comprising norbornene is contacted with a silane in the presence of a catalyst, thereby forming a silated intermediate. This silated intermediate is then contacted with a monomer in the presence of a catalyst via Group Transfer Polymerization (GTP). The resulting compound from GTP is contacted with a ring opening metathesis polymerization (ROMP) catalyst to prepare the brush polymer. Surprisingly, the brush polymers obtained from the above process are accessed in an efficient and rapid GTP methodology as compared to prior methods.

    Group transfer polymerization for the production of functional monomers
    9.
    发明授权
    Group transfer polymerization for the production of functional monomers 有权

    公开(公告)号：US11286340B2

    公开(公告)日：2022-03-29

    申请号：US16775755

    申请日：2020-01-29

    申请人： Colorado State University Research Foundation

    发明人： Garret Miyake ,  Ryan M. Pearson ,  Matthew D. Ryan

    IPC分类号： C08G61/12

    摘要： The present invention provides efficient processes for preparing brush polymers. In general, the process comprises three distinct reaction steps utilizing two separate catalysts. In the first step, the initiating compound comprising norbornene is contacted with a silane in the presence of a catalyst, thereby forming a silated intermediate. This silated intermediate is then contacted with a monomer in the presence of a catalyst via Group Transfer Polymerization (GTP). The resulting compound from GTP is contacted with a ring opening metathesis polymerization (ROMP) catalyst to prepare the brush polymer. Surprisingly, the brush polymers obtained from the above process are accessed in an efficient and rapid GTP methodology as compared to prior methods.