Invention Grant
- Patent Title: 3,3,3',3'-tetramethyl-1,1'-spirobiindane-based monophosphine ligand, intermediates thereof, preparation method and use of the same
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Application No.: US17040550Application Date: 2018-05-15
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Publication No.: US11377457B2Publication Date: 2022-07-05
- Inventor: Xufeng Lin , Huanyu Shan , Qiaoxia Zhou
- Applicant: ZHEJIANG UNIVERSITY
- Applicant Address: CN Hangzhou
- Assignee: ZHEJIANG UNIVERSITY
- Current Assignee: ZHEJIANG UNIVERSITY
- Current Assignee Address: CN Hangzhou
- Agency: W&G Law Group
- Priority: CN201810453127 20180511
- International Application: PCT/CN2018/086893 WO 20180515
- International Announcement: WO2019/213987 WO 20191114
- Main IPC: C07F9/00
- IPC: C07F9/00 ; B01J31/00 ; C07F9/6571 ; B01J31/18

Abstract:
Provided are a 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-based monophosphine ligand and intermediates thereof, and preparation methods and uses of the same. The monophosphine ligand is a compound represented by formula I or formula I′, or an enantiomer, a raceme or a diastereoisomer thereof, including phosphonite ligands, phosphite ligands, phosphoramidite ester ligands, phosphoric acid and phosphonic amide. The monophosphine ligand is prepared with a known 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-7,7′-diol derivative as a raw material through a scheme in which the compound presented by formula II acts as an intermediate. The present disclosure provides a novel monophosphine ligand, which can be used as a ligand in a metal-catalysed organic reactions or in directly catalyzing an organic reaction, especially as a chiral monophosphine ligand widely used in many chiral catalytic reactions such as asymmetric addition, asymmetric hydrogenation, asymmetric coupling, and asymmetric allyl alkylation, having economic practicality and industrial application prospects.
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