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    • 3. 发明授权
    • Optically-active bis(alkynylphosphino) ethane-borane derivative and process for producing the same
    • 光学活性双(炔基膦基)乙烷 - 硼烷衍生物及其制备方法
    • US07534920B2
    • 2009-05-19
    • US12073415
    • 2008-03-05
    • Tsuneo ImamotoKazuhiro YoshidaYouichi SaitohAya Koide
    • Tsuneo ImamotoKazuhiro YoshidaYouichi SaitohAya Koide
    • C07F9/02
    • C07F9/5027C07B53/00C07F9/5013
    • An optically-active bis(alkynylphosphino)ethane-borane derivative represented by formula (1): wherein R1 and R2, which may be the same or different, each represent an alkyl group, a phenyl group, an alkylsilyl group or a hydrogen atom; R3 represents a branched alkyl group, an alicyclic hydrocarbon group or an aromatic hydrocarbon group; and the asterisk * indicates an optically-active site. The derivative (1) is prepared by bromination of, e.g., an (S)-t-butylmethylphosphine-borane, reaction with an alkynyl lithium, deprotonation, followed by oxidative coupling. Deprotection of the derivative (1) by deboranation gives an optically-active bis(alkynylphosphino)ethane derivative useful as a ligand providing an asymmetric catalyst for catalytic asymmetric synthesis. The asymmetric catalyst having the ligand exhibits high selectivity and catalyst activity.
    • 由式(1)表示的光学活性双(炔基膦基)乙烷 - 硼烷衍生物:其中R1和R2可以相同或不同,各自表示烷基,苯基,烷基甲硅烷基或氢原子; R3表示支链烷基,脂环族烃基或芳香族烃基; 星号*表示光学活性位点。 衍生物(1)通过例如(S) - 叔丁基甲基膦 - 硼烷的溴化,与炔基锂的反应,去质子化,然后进行氧化偶联来制备。 衍生物(1)通过脱硼脱保护得到用作催化不对称合成的不对称催化剂的配体的光学活性双(炔基膦基)乙烷衍生物。 具有配体的不对称催化剂表现出高选择性和催化剂活性。
    • 4. 发明申请
    • Optically-active bis(alkynylphosphino) ethane-borane derivative and process for producing the same
    • 光学活性双(炔基膦基)乙烷 - 硼烷衍生物及其制备方法
    • US20080221362A1
    • 2008-09-11
    • US12073415
    • 2008-03-05
    • Tsuneo ImamotoKazuhiro YoshidaYouichi SaitohAya Koide
    • Tsuneo ImamotoKazuhiro YoshidaYouichi SaitohAya Koide
    • C07F9/54
    • C07F9/5027C07B53/00C07F9/5013
    • An optically-active bis(alkynylphosphino)ethane-borane derivative represented by formula (1): wherein R1 and R2, which may be the same or different, each represent an alkyl group, a phenyl group, an alkylsilyl group or a hydrogen atom; R3 represents a branched alkyl group, an alicyclic hydrocarbon group or an aromatic hydrocarbon group; and the asterisk * indicates an optically-active site. The derivative (1) is prepared by bromination of, e.g., an (S)-t-butylmethylphosphine-borane, reaction with an alkynyl lithium, deprotonation, followed by oxidative coupling. Deprotection of the derivative (1) by deboranation gives an optically-active bis(alkynylphosphino)ethane derivative useful as a ligand providing an asymmetric catalyst for catalytic asymmetric synthesis. The asymmetric catalyst having the ligand exhibits high selectivity and catalyst activity.
    • 由式(1)表示的光学活性双(炔基膦基)乙烷 - 硼烷衍生物:其中R 1和R 2可以相同或不同,表示 烷基,苯基,烷基甲硅烷基或氢原子; R 3表示支链烷基,脂环族烃基或芳香族烃基; 星号*表示光学活性位点。 衍生物(1)通过例如(S) - 叔丁基甲基膦 - 硼烷的溴化,与炔基锂的反应,去质子化,然后进行氧化偶联来制备。 衍生物(1)通过脱硼脱保护得到用作催化不对称合成的不对称催化剂的配体的光学活性双(炔基膦基)乙烷衍生物。 具有配体的不对称催化剂表现出高选择性和催化剂活性。
    • 7. 发明申请
    • Process for producing optically active dimer of phosphorus heterocycle
    • 磷杂环的光学活性二聚体的制备方法
    • US20060211888A1
    • 2006-09-21
    • US10564985
    • 2004-07-27
    • Nobuhiko OoharaTsuneo Imamoto
    • Nobuhiko OoharaTsuneo Imamoto
    • C07F9/02
    • C07F9/65683C07F9/65685C07F15/008
    • Primary phosphine represented by formula (1): [Chem. 1] R—PH2  (1) (wherein R represents a linear, branched, or cyclic alkyl group having 2 to 20 carbon atoms) is reacted with a compound represented by formula (2): [Chem. 2] Y—CnH2n—Y  (2) (wherein Y represents a halogen atom or a leaving group selected from —OTs, —OTf, and —OMs, and n represents a number of 3 to 6) in the presence of a base; the product is reacted with boron trihydride, oxygen, or sulfur to obtain a phosphorus heterocyclic compound represented by formula (3): (wherein R represents the same as the above, n represents a number of 1 to 4, X represents a boron trihydride group, an oxygen atom, or a sulfur atom, and === represents a single bond when X is a boron trihydride group or a double bond when X is an oxygen atom or sulfur atom); the resultant compound is dimerized to produce a phosphorus heterocyclic dimer represented by formula (4): (wherein R, n, and X represent the same as the above); and then oxygen, sulfur, or borane is removed from the resultant phosphorus heterocyclic dimer to obtain an optically active phosphorus heterocyclic dimer represented by formula (5): (wherein R and n represent the same as the above).
    • 由式(1)表示的主要膦:[Chem。 1] <?in-line-formula description =“In-line Formulas”end =“lead”?> R-PH <2>(1)<?in-line-formula description =“In- (式中,R表示碳原子数2〜20的直链状,支链状或环状的烷基)与式(2)表示的化合物反应:[化学式3] 2] <?in-line-formula description =“In-line Formulas”end =“lead”?> YC H 2n-2(2)<?in -line-formula description =“In-line Formulas”end =“tail”?>(其中Y表示卤原子或选自-OT,-OTf和-OMs的离去基团,n表示3〜 6)在碱的存在下; 使产物与三氢化硼,氧或硫反应,得到由式(3)表示的磷杂环化合物:其中R表示与上述相同的数,n表示1至4的数,X表示三氢化硼 ,氧原子或硫原子,当X是氧化硼原子或硫原子时,X表示单键或双键; 将所得化合物二聚以产生由式(4)表示的磷杂环二聚体:(其中R,n和X表示与上述相同); 然后从得到的磷杂环二聚体中除去氧,硫或甲硼烷,得到式(5)表示的光学活性磷杂环二聚体:(其中R和n表示与上述相同的含义)。
    • 9. 发明申请
    • 2, 2'-BIS (DIALKYLPHOSPHINO) BIPHENYL COMPOUND, PRODUCTION METHOD THEREOF, AND METAL COMPLEX COMPRISING THE COMPOUND AS LIGAND
    • 2,2-BIS(二乙基磷酰)联苯胺化合物,其生产方法和包含化合物的金属复合物
    • US20100234626A1
    • 2010-09-16
    • US12719252
    • 2010-03-08
    • Ken TamuraMasashi SugiyaTsuneo Imamoto
    • Ken TamuraMasashi SugiyaTsuneo Imamoto
    • C07F15/00C07F9/535
    • C07F15/008B01J31/2409B01J2231/645B01J2531/822C07F9/5027
    • It is an object of the present invention to provide a novel phosphine compound capable of forming a metal complex useful as a catalyst for various asymmetric synthesis reactions, a production method thereof, and a metal complex comprising the aforementioned compound as a ligand.A 2,2′-bis(dialkylphosphino)biphenyl compound represented by the formula (A-1). A compound represented by the formula (1) is appropriate as a catalyst for an asymmetric synthesis reaction. The biphenyl compound represented by the formula (A-1) can be obtained by subjecting a compound represented by the formula (A-2) to a coupling reaction to obtain an intermediate represented by the formula (A-3), and then subjecting the intermediate to a deboranation reaction. In the formula (A-1), R1 and R2 each independently represent a C1-C10 alkyl group, R3 represents a monovalent substituent, and n represents an integer of 0 to 4. In the formula (1), R1 represents a C2-C10 alkyl group, R2 represents an alkyl group containing fewer carbon atoms than R1, R3 represents a monovalent substituent, and n represents an integer of 0 to 4.
    • 本发明的目的是提供能够形成可用作各种不对称合成反应的催化剂的金属络合物,其制备方法和包含上述化合物作为配体的金属络合物的新型膦化合物。 由式(A-1)表示的2,2'-双(二烷基膦基)联苯化合物。 由式(1)表示的化合物作为不对称合成反应的催化剂是合适的。 由式(A-1)表示的联苯化合物可以通过使式(A-2)表示的化合物进行偶联反应,得到式(A-3)表示的中间体,然后使 中间体到脱硼反应。 在式(A-1)中,R 1和R 2各自独立地表示C1-C10烷基,R3表示一价取代基,n表示0〜4的整数。式(1)中,R1表示C2- C10烷基,R2表示比R1少的碳原子的烷基,R3表示一价取代基,n表示0〜4的整数。