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85 条记录 (耗时 0.021 秒)

    Preparation of 5-fluoro-2-phenyl-4H-3,1-benzoxazin-4-ones
    1.
    发明授权
    Preparation of 5-fluoro-2-phenyl-4H-3,1-benzoxazin-4-ones 失效
    制备5-氟-2-苯基-4H-3,1-苯并恶嗪-4-酮

    公开(公告)号：US4562254A

    公开(公告)日：1985-12-31

    申请号：US655726

    申请日：1984-09-28

    申请人： Jurgen Varwig ,  Gerhard Hamprecht ,  Wolfgang Rohr

    发明人： Jurgen Varwig ,  Gerhard Hamprecht ,  Wolfgang Rohr

    IPC分类号： C07D265/22 ,  C07D265/10

    CPC分类号： C07D265/22

    摘要： 5-Fluorobenzoxazinones (I) ##STR1## where R is hydrogen, halogen, C.sub.1 -C.sub.3 -alkyl, or trifluoromethyl, trifluoromethoxy, chlorodifluoromethoxy, difluoromethoxy, tetrafluoroethoxy, trifluoromethylmercapto or chlorodifluoromethylmercapto in the m- or p-position, are prepared by reacting the corresponding benzoxazinone (II) ##STR2## in particular one which is 5-chloro-substituted or 5-bromo-substituted, with a fluoride, in particular potassium fluoride, in the presence or absence of a solvent, by a process in which the reaction is carried out in the absence of water or using previously dried starting materials, and in the presence or absence of a decomposition inhibitor, drying preferably being carried out by treatment with an acid halide, e.g. thionyl chloride, and the inhibitor used being a metal iodide, e.g. sodium iodide, or iodine.

    摘要翻译： 制备5-氟苯并恶嗪酮（I）其中R是氢，卤素，C 1 -C 3 - 烷基或三氟甲基，三氟甲氧基，氯代二氟甲氧基，二氟甲氧基，四氟乙氧基，三氟甲基巯基或氯代二氟甲基巯基在m-或p-位上 通过使相应的苯并恶嗪酮（II）（II）特别是5-氯取代或5-溴取代的苯并恶嗪酮（II）与氟化物，特别是氟化钾在溶剂存在或不存在下，通过 反应在没有水或使用预先干燥的原料的情况下进行的方法，并且在存在或不存在分解抑制剂的情况下，干燥优选通过用酰卤处理，例如 亚硫酰氯，并且使用的抑制剂是金属碘化物，例如。 碘化钠或碘。

    Preparation of fluorophthalic anhydrides
    3.
    发明授权
    Preparation of fluorophthalic anhydrides 失效
    氟代邻苯二甲酸酐的制备

    公开(公告)号：US4514572A

    公开(公告)日：1985-04-30

    申请号：US572949

    申请日：1984-01-23

    申请人： Gerhard Hamprecht ,  Juergen Varwig ,  Wolfgang Rohr

    发明人： Gerhard Hamprecht ,  Juergen Varwig ,  Wolfgang Rohr

    IPC分类号： C07C51/567 ,  C07D307/89

    CPC分类号： C07C51/567 ,  C07D307/89

    摘要： Fluorophthalic anhydrides containing 1 or 2 fluorine atoms are prepared by a process in which a chlorophthalic anhydride containing 1 or 2 chlorine atoms is treated with an acid chloride of sulfurous acid or of carbonic acid in the presence of an aliphatic sulfone, and the reaction mixture is then reacted with potassium fluoride.

    摘要翻译： 含有1或2个氟原子的氟代邻苯二甲酸酐通过在脂族砜存在下用亚硫酸或碳酸的酰氯处理含有1或2个氯原子的氯代邻苯二甲酸酐的方法制备，反应混合物为 然后与氟化钾反应。

    Preparation of substituted 2-phenyl-4H-3,1-benzoxazin-4-ones
    6.
    发明授权
    Preparation of substituted 2-phenyl-4H-3,1-benzoxazin-4-ones 失效
    取代的2-苯基-4H-3,1-苯并恶嗪-4-酮的制备

    公开(公告)号：US4673740A

    公开(公告)日：1987-06-16

    申请号：US842995

    申请日：1986-03-24

    申请人： Gerhard Hamprecht ,  Wolfgang Rohr ,  Juergen Varwig

    发明人： Gerhard Hamprecht ,  Wolfgang Rohr ,  Juergen Varwig

    IPC分类号： C07D265/22 ,  C07D265/36

    CPC分类号： C07D265/22

    摘要： 2-Phenyl-4H-3,1-benzoxazin-4-ones of the general formula I ##STR1## where R.sup.1 and R.sup.2 are each hydrogen or halogen, R.sup.1 may furthermore be methyl or methoxy and R.sup.2 may furthermore be haloalkyl, haloalkoxy, haloalkylmercapto or haloalkylsulfonyl, each of 1 to 3 carbon atoms, are prepared by reacting an appropriate anthranilic acid with an appropriate benzoyl halide in the presence of a base (acylation) and effecting ring closure by removal of water (cyclization), the process being carried out in a suspending agent which is immiscible with aqueous alkali metal hydroxide solution and in the presence of a phase-transfer catalyst.

    摘要翻译： 其中R 1和R 2各自为氢或卤素的通式I（I）的2-苯基-4H-3,1-苯并恶嗪-4-酮，R 1还可以是甲基或甲氧基，R 2还可以是卤代烷基， 通过在碱（酰化）存在下使合适的苯甲酰卤与适当的苯甲酰卤反应并通过除去水（环化）进行闭环来制备具有1至3个碳原子的卤代烷氧基，卤代烷基巯基或卤代烷基磺酰基， 在与碱金属氢氧化物水溶液不混溶并在相转移催化剂存在下的悬浮剂中进行。

    Preparation of fluorophthalimides
    7.
    发明授权
    Preparation of fluorophthalimides 失效
    氟代邻苯二甲酰亚胺的制备

    公开(公告)号：US4680412A

    公开(公告)日：1987-07-14

    申请号：US615806

    申请日：1984-05-31

    申请人： Gerhard Hamprecht ,  Juergen Varwig ,  Wolfgang Rohr

    发明人： Gerhard Hamprecht ,  Juergen Varwig ,  Wolfgang Rohr

    IPC分类号： C07D209/48

    CPC分类号： C07D209/48

    摘要： Fluorophthalimides are prepared by a process in which a fluorophthalic anhydride is reacted, in the presence of an aliphatic sulfone, with from 0.4 to 0.8 mole of urea per mole of fluorophthalic anhydride, and the reaction is carried out first at 110.degree.-140.degree. C. and then at 150.degree.-170.degree. C.

    摘要翻译： 氟代邻苯二酰亚胺通过在脂肪族砜存在下使氟代邻苯二甲酸酐与每摩尔氟代邻苯二甲酸酐为0.4至0.8摩尔的尿素反应的方法制备，首先在110-140℃下进行反应 然后在150℃-170℃

    Hook-on grab bucket, in particular motor-driven underwater grab bucket
    8.
    发明授权
    Hook-on grab bucket, in particular motor-driven underwater grab bucket 有权
    钩式抓斗，特别是电动水下抓斗

    公开(公告)号：US07207127B2

    公开(公告)日：2007-04-24

    申请号：US10886224

    申请日：2004-07-06

    申请人： Wolfgang Rohr

    发明人： Wolfgang Rohr

    IPC分类号： E02F3/76

    CPC分类号： E02F3/47 ,  B66C3/16

    摘要： A grab bucket, in particular motor-driven underwater grab bucket, has first and second half-scoops. The scoops can be moved relative to on another from an open position into a closed position by a hydraulic cylinder. The opening angle of the half-scoops is monitored by a sensor which is connected to a control and monitoring device. The sensor is integrated in the hydraulic cylinder and generates an actuating-travel signal which corresponds to the actuating travel of the hydraulic cylinder.

    摘要翻译： 抓斗，特别是电动水下抓斗，具有第一和第二半铲。 勺子可以通过液压缸从打开位置相对于另一个移动到关闭位置。 半勺的打开角度由连接到控制和监视装置的传感器监测。 传感器集成在液压缸中，并产生对应于液压缸的启动行程的致动行程信号。

    Floating dredger
    9.
    发明授权
    Floating dredger 失效
    浮动干旱

    公开(公告)号：US5179793A

    公开(公告)日：1993-01-19

    申请号：US596967

    申请日：1990-10-15

    申请人： Wolfgang Rohr

    发明人： Wolfgang Rohr

    IPC分类号： E02F3/413 ,  B66C1/62 ,  B66D1/62 ,  E02F3/47 ,  E02F5/00 ,  E02F7/02

    CPC分类号： E02F7/023 ,  B66D1/62

    摘要： The floating dredger is provided with a floating body and a framework 1 on which a drive for driving pulleys 2,3,4 is mounted. Over the driving pulley 2 a hoisting rope 5 is put; on both sides of the pulley the grippers 6,7 are suspended, by means of rope pulleys 8. Each of the hoisting rope 5 ends is fastened to a compensating winch 9,10 which provides for the rope to be compensated for varying dredging depths.

    摘要翻译： 浮式挖泥船设置有浮体和框架1，驱动带轮2,3,4的驱动装置安装在该框架1上。 在驱动滑轮2上放置起重绳索5; 在滑轮的两侧，夹具6,7通过绳索滑轮8悬挂。每个提升绳索5的端部被紧固到补偿绞盘9,10，该绞盘提供要补偿的绳索以改变疏浚深度。

    Preparation of alkoxy maleic anhydrides
    10.
    再颁专利
    Preparation of alkoxy maleic anhydrides 失效

    公开(公告)号：USRE33820E

    公开(公告)日：1992-02-11

    申请号：US592847

    申请日：1990-10-04

    申请人： Rainer Becker ,  Wolfgang Rohr

    发明人： Rainer Becker ,  Wolfgang Rohr

    IPC分类号： C07D307/60 ,  C07C59/58 ,  C07D207/44 ,  C07D207/456 ,  C08F283/08

    CPC分类号： C07D207/456 ,  C07C59/58

    摘要： The invention relates to novel alkoxy substituted maleimides of the formula ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.2 -C.sub.8 -alkenyl, phenyl or phenylalkyl, and the organic radicals may furthermore carry inert substituents, and R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl, and alkoxy-substituted maleic anhydrides of the formula II ##STR2## where R.sup.2 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl and Z is hydrogen, halogen or a radical OR.sup.3, where R.sup.3 is C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.4 -alkenyl, C.sub.1 -C.sub.4 -haloalkyl or C.sub.2 -C.sub.4 -haloalkenyl.The invention further relates to processes for preparing such maleimides I and the corresponding maleic anhydrides II and their use as graft monomers in graft polymers based on polyphenylene ethers.