Method for manufacturing (3S,4R)-4-[(R)-1′-formylethyl]azetidin-2-one derivatives
    22.
    发明授权
    Method for manufacturing (3S,4R)-4-[(R)-1′-formylethyl]azetidin-2-one derivatives 失效
    制备(3S,4R)-4 - [(R)-1'-甲酰乙基]氮杂环丁-2-酮衍生物的方法

    公开(公告)号:US06169179A

    公开(公告)日:2001-01-02

    申请号:US09329335

    申请日:1999-06-10

    IPC分类号: C07D20500

    CPC分类号: C07D205/08 Y02P20/55

    摘要: A method for manufacturing (3S,4R)-4-[(R)-1′-formylethyl]azetidin-2-one derivatives represented by formula (3) wherein R1 represents a hydrogen atom or a protective group, through asymmetric hydroformylation of 4-vinylazetidin-2-one represented by formula (1) wherein R1 has the same meaning as described above; in the presence of a rhodium complex and a (2S,4S)-diphosphine compound represented by formula (2) wherein R2 represents a phenyl group which may be substituted with 1-5 substituent(s) selected from a lower alkyl group, a lower alkoxy group, and a halogen atom. By use of both an inexpensive optically active diphosphine compound and a rhodium complex as catalysts, intermediate compounds important for carbapenem antibiotics can be manufactured with high selectivity and efficiency.

    摘要翻译: 制备由式(3)表示的(3S,4R)-4 - [(R)-1'-甲基乙基]氮杂环丁烷-2-酮衍生物的方法,其中R 1表示氢原子或保护基,通过不对称加氢甲酰化4 (1)表示的1-乙烯基氮杂环丁烷-2-酮,其中R1具有与上述相同的含义; 在铑络合物和由式(2)表示的(2S,4S) - 二膦化合物的存在下,其中R 2表示可被1-5个选自以下的取代基取代的苯基:低级烷基,低级 烷氧基和卤素原子。通过使用廉价的光学活性二膦化合物和铑配合物作为催化剂,可以以高选择性和高效率制造对碳青霉烯类抗生素重要的中间体化合物。

    Phosphine compound, complex containing the phosphine compound as ligand,
process for producing optically active aldehyde using the phosphine
compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one
derivatives
    24.
    发明授权
    Phosphine compound, complex containing the phosphine compound as ligand, process for producing optically active aldehyde using the phosphine compound or the complex, and 4-[(R)-1'-formylethyl]azetidin-2-one derivatives 失效
    膦化合物,含膦化合物作为配体的络合物,使用膦化合物或络合物制备旋光醛的方法,以及4 - [(R)-1'-甲酰基乙基]氮杂环丁-2-酮衍生物

    公开(公告)号:US5530150A

    公开(公告)日:1996-06-25

    申请号:US323492

    申请日:1994-10-12

    IPC分类号: C07F9/02 C07F15/00

    CPC分类号: C07F9/02 C07F15/00

    摘要: A phosphine compound represented by one of the formulas: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, each represent a phenyl group or a phenyl group substituted with a halogen atom or a lower alkyl group or taken together form a divalent hydrocarbon group; and R.sup.3 and R.sup.4, which may be the same or different, each represent a lower alkyl group, a phenyl group or a phenyl group substituted with a halogen atom, a lower alkyl group or a lower alkoxy group or taken together form a divalent hydrocarbon group, and wherein R.sup.6 and R.sup.6' which may be the same or different, each represent a hydrogen atom, a lower alkyl group or a lower alkoxy group; R.sup.5, R.sup.5', R.sup.11 and R.sup.11' which may be the same or different, each represent a hydrogen atom, a lower alkyl group, a lower alkoxy group or a halogen atom; or a pair of R.sup.5 and R.sup.6 or a pair of R.sup.5' and R.sup.6' may form a ring; R.sup.7 and R.sup.8, which may be the same or different, each represent a phenyl group or a phenyl group substituted with a lower alkyl group, a halogen atom or a lower alkoxy group; and R.sup.9 and R.sup.10, which may be the same or different, each represent a phenyl group or a phenyl group substituted with a lower alkyl group, a lower alkoxy group or a halogen atom; or R.sup.9 and R.sup.10 may be taken together to form a divalent hydrocarbon group.

    摘要翻译: 由下式之一表示的膦化合物:其中R 1和R 2可以相同或不同,各自表示苯基或苯基(III),其中R 1和R 2可以相同或不同, 被卤素原子或低级烷基取代或一起形成二价烃基; 和可以相同或不同的R 3和R 4各自表示低级烷基,苯基或被卤素原子,低级烷基或低级烷氧基取代的苯基或一起形成二价烃基 并且其中可以相同或不同的R6和R6'各自表示氢原子,低级烷基或低级烷氧基; R5,R5',R11和R11'可以相同或不同,分别表示氢原子,低级烷基,低级烷氧基或卤素原子; 或一对R 5和R 6或一对R 5'和R 6'可以形成环; R 7和R 8可以相同或不同,表示苯基或被低级烷基,卤原子或低级烷氧基取代的苯基; 和R 9和R 10可以相同或不同,各自表示苯基或被低级烷基,低级烷氧基或卤素原子取代的苯基; 或者R 9和R 10可以一起形成二价烃基。

    Method of forming ferrite film on particles or fibers
    26.
    发明授权
    Method of forming ferrite film on particles or fibers 失效
    在颗粒或纤维上形成铁氧体膜的方法

    公开(公告)号:US4911957A

    公开(公告)日:1990-03-27

    申请号:US247609

    申请日:1988-09-22

    CPC分类号: H01F41/24 H01F10/20

    摘要: Disclosed is a method of forming a ferrite film on particulate and/or fibrous substrate by adding an oxidizer solution and a ferrous ion solution to a deoxidized solution containing particulate and/or fibrous substrates to form a thin ferrite film on the particulate and/or fibrous substrates, wherein an addition amount of the ferrous ion solution is controlled such that an oxidation-reduction potential of the deoxidized solution keeps approximately a center point between the oxidation side and the reduction side, when a pH value of the dioxidized solution is adjusted to a constant value between pH 6 and 10.

    摘要翻译: 公开了一种在颗粒和/或纤维基材上形成铁氧体膜的方法,其中将氧化剂溶液和亚铁离子溶液加入含有颗粒和/或纤维基材的脱氧溶液中,以在颗粒和/或纤维状物质上形成薄的铁氧体膜 底物,其中控制所述亚铁离子溶液的添加量,使得当将所述二氧化溶液的pH值调节至所述氧化还原侧时,所述脱氧溶液的氧化还原电位保持在所述氧化侧和所述还原侧之间的大致中心点 在pH6和10之间的恒定值。

    Travel locus display device
    29.
    发明授权
    Travel locus display device 失效
    旅行轨迹显示装置

    公开(公告)号:US4528552A

    公开(公告)日:1985-07-09

    申请号:US386760

    申请日:1982-06-09

    CPC分类号: G01C21/14 G01C21/3676

    摘要: A travel locus display device has a display unit such as a CRT display to display a start point and a destination point of a vehicle and a travel locus of the vehicle from the start point to the destination point on a coordinate display area of a display screen of the display unit. The display screen is divided into four quadrants, one of which is selected as a display quadrant to which the destination point belongs. The display quadrant is displyed over an entire area of the coordinate display area.

    摘要翻译: 行驶轨迹显示装置具有诸如CRT显示器的显示单元,以在显示屏幕的坐标显示区域上显示车辆的起始点和目的地点以及车辆从起始点到目的地点的行驶轨迹 的显示单元。 显示屏被分成四个象限,其中一个被选为目的地点所属的显示象限。 在坐标显示区域的整个区域上显示显示象限。

    Steel strip having differentiated multilayer coatings and being useful
for manufacturing of cans
    30.
    发明授权
    Steel strip having differentiated multilayer coatings and being useful for manufacturing of cans 失效
    具有差异化多层涂层并且可用于制造罐的钢带

    公开(公告)号:US4442181A

    公开(公告)日:1984-04-10

    申请号:US370349

    申请日:1982-04-21

    摘要: A differential multilayer-coated steel strip having an excellent corrosion resistance, enamel-adhering property, seam weldability and drawability and being useful for the production of cans, comprising(A) a steel strip substrate;(B) a first surface coating formed on a surface of the substrate and comprising(a) a plated nickel first base layer formed on the substrate surface and consisting of from 10 to 5,000 mg/m.sup.2 of plated nickel,(b) a plated tin intermediate layer formed on the first base layer surface and consisting of from 50 to 11,000 mg/m.sup.2 of plated tin, and(c) a chromium-plated first surface layer formed on the intermediate layer surface and having a weight of from 3 to 50 mg/m.sup.2, in terms of metallic chromium; and(C) a second surface coating formed on the other surface of the substrate and comprising(d) a plated nickel second base layer formed on the other surface of the substrate and consisting of from 10 to 5,000 mg/m.sup.2 of plated nickel, and(e) a chromium-plated second surface layer formed on the second base layer surface and having a weight of from 3 to 50 mg/m.sup.2, in terms of metallic chromium.

    摘要翻译: 具有优异的耐腐蚀性,搪瓷附着性,缝焊性和拉伸性的差示多层涂覆钢带,可用于制造罐头,包括(A)钢带基材; (B)形成在所述基板的表面上的第一表面涂层,其包含:(a)在所述基板表面上形成的镀镍的第一基层,由10-5,000mg / m2的镀镍组成,(b)镀锡 中间层,形成在第一基底层表面上,由50〜11000mg / m 2的镀锡组成,(c)形成在中间层表面上并具有3〜50mg的重量的镀铬的第一表面层 / m2,以金属铬计; 和(C)形成在所述基板的另一个表面上的第二表面涂层,并且包括(d)形成在所述基板的另一个表面上并由10至5,000mg / m 2的镀镍组成的镀镍的第二基底层,以及 (e)形成在第二基层表面上并以金属铬换算为3至50mg / m 2的镀铬第二表面层。