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    Method of preparing trisubstituted ethylene compounds
    1.
    发明授权
    Method of preparing trisubstituted ethylene compounds 有权

    公开(公告)号：US11332426B2

    公开(公告)日：2022-05-17

    申请号：US16646479

    申请日：2018-09-21

    Applicant: Trustees of Boston College ,  Massachusetts Institute of Technology

    Inventor： Amir H. Hoveyda ,  Thach T. Nguyen ,  Ming Joo Koh ,  Chaofan Xu ,  Sebastian Torker ,  Richard Royce Schrock

    IPC: C07C41/30 ,  B01J31/22 ,  C07C43/178 ,  C07C2/04 ,  C07C6/04 ,  C07C6/02

    Abstract: Method of forming a trisubstituted ethylene compound, the method comprising: (A) providing a trisubstituted ethylene compound bearing a first, a second and a third substituent, in which the first and the second substituent are bound to the one olefinic carbon atom and are different from one another; (B) providing a monosubstituted ethylene compound or a disubstituted ethylene compound in which the substituents are vicinally bound to the olefinic carbon atoms, bearing at least a fourth substituent, respectively; (C) subjecting the trisubstituted ethylene compound provided in step (A) to a cross-metathesis reaction with olefin provided in step (B) to form said trisubstituted ethylene, wherein the cross-metathesis reaction is catalysed by a transition metal complex bearing ligands from which one ligand is a carbene ligand, wherein the carbene complex is characterized by a M=C moiety, wherein M is the transition metal; and wherein the reaction proceeds stereoselectively.

    METHOD OF PREPARING TRISUBSTITUTED ETHYLENE COMPOUNDS
    3.
    发明申请
    METHOD OF PREPARING TRISUBSTITUTED ETHYLENE COMPOUNDS 审中-公开

    公开(公告)号：US20200270194A1

    公开(公告)日：2020-08-27

    申请号：US16646479

    申请日：2018-09-21

    Applicant: Trustees of Boston College ,  Massachusetts Institute of Technology

    Inventor： Amir H. Hoveyda ,  Thach T. Nguyen ,  Ming Joo Koh ,  Chaofan Xu ,  Sebastian Torker ,  Richard Royce Schrock

    IPC: C07C41/30 ,  C07C43/178 ,  B01J31/22

    Abstract: Method of forming a trisubstituted ethylene compound, the method comprising: (A) providing a trisubstituted ethylene compound bearing a first, a second and a third substituent, in which the first and the second substituent are bound to the one olefinic carbon atom and are different from one another; (B) providing a monosubstituted ethylene compound or a disubstituted ethylene compound in which the substituents are vicinally bound to the olefinic carbon atoms, bearing at least a fourth substituent, respectively; (C) subjecting the trisubstituted ethylene compound provided in step (A) to a cross-metathesis reaction with olefin provided in step (B) to form said trisubstituted ethylene, wherein the cross-metathesis reaction is catalysed by a transition metal complex bearing ligands from which one ligand is a carbene ligand, wherein the carbene complex is characterized by a M═C moiety, wherein M is the transition metal; and wherein the reaction proceeds stereoselectively.

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