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16 条记录 (耗时 0.04 秒)

    Method of preparing fluoroaromatic compounds
    8.
    发明授权
    Method of preparing fluoroaromatic compounds 有权
    氟代芳族化合物的制备方法

    公开(公告)号：US6008407A

    公开(公告)日：1999-12-28

    申请号：US185171

    申请日：1998-11-03

    申请人： Oleg Matveyevich Nefedov ,  Nikolay Vasiljcvich Volchkov ,  Mariya Borisovna Lipkind ,  Ho Seong Lee ,  Young Jun Park ,  Min Hwan Kim

    发明人： Oleg Matveyevich Nefedov ,  Nikolay Vasiljcvich Volchkov ,  Mariya Borisovna Lipkind ,  Ho Seong Lee ,  Young Jun Park ,  Min Hwan Kim

    IPC分类号： C07C17/25 ,  C07C17/30 ,  C07C25/13 ,  C07C51/58 ,  C07C51/16

    CPC分类号： C07C17/30 ,  C07C17/25 ,  C07C25/13 ,  C07C51/093 ,  C07C51/58

    摘要： The present invention provides a method of preparing ortho-difluorobenzene derivatives, which comprises (a) providing a mixture of cyclohexenes by reacting chlorotrifluoroethylene (CTFE) and 1.3-diene in a flow reactor and distilling the resultant, and (b) dehydrohalogenating the mixture of cyclohexenes with a phase transition catalyst in :he presence of alkali metal hydroxide at temperature range of 40 to 150.degree. C. without using any organic solvent. The distillate having low boiling point, which is obtained during distillation of the resultant, is recycled into the flow reactor. The present invention also provides a method of preparing 2-chloro-4,5-difluorobenzoic acid, which comprises (a) providing a mixture of 4-chloro-1-methyl-4,5,5-trifluorocyclohexene and 5-chloro-1-methyl-4,4,5-trifluorocyclohexene by reacting chlorotrifluoroethylene (CTFE) and isoprene and distilling the resultant. (b) dehydrohalogenating said mixture in the presence of alkali metal hydroxide and a phase transition catalyst to form 3,4-difluorotoluene, to reacting said 3,4-difluorotoluene with chlorine gas without using any organic solvent to form 2-chloro-4,5-difluorotoluene, (d) photo-reacting said 2-chloro-4,5-difluorotoluene with chlorine gas under a lighting mercury lamp without using any organic solvent to form 2-chloro-4,5-difluorobenzotrichloride, and (e) reacting said 2-chloro-4,5-difluorobenzotrichloride with aqueous acid solution without using any organic solvent. The present invention also provides a method of preparing 2-chloro-4,5-difluorobenzoyl chloride by reacting the 2-chloro-4,5-difluorobenzotrichloride of step (e) above with zinc oxide.

    摘要翻译： 本发明提供了一种制备邻二氟苯衍生物的方法，其包括（a）通过在流动反应器中使氯三氟乙烯（CTFE）和1,3-二烯反应提供环己烯的混合物并蒸馏所得物，和（b）脱卤化氢 具有相变催化剂的环己烯：在不使用任何有机溶剂的情况下，在40至150℃的温度范围内存在碱金属氢氧化物。 在蒸馏过程中获得的具有低沸点的馏出物被循环到流动反应器中。 本发明还提供了制备2-氯-4,5-二氟苯甲酸的方法，其包括（a）提供4-氯-1-甲基-4,5,5-三氟环己烯和5-氯-1 - 甲基-4,4,5-三氟环己烯，通过氯三氟乙烯（CTFE）和异戊二烯反应并蒸馏所得物。 （b）在碱金属氢氧化物和相变催化剂的存在下将所述混合物脱卤化氢以形成3,4-二氟甲苯，使所述3,4-二氟甲苯与氯气反应，而不使用任何有机溶剂形成2-氯-4， （d）在照明汞灯下使所述2-氯-4,5-二氟甲苯与氯气进行光反应，而不使用任何有机溶剂形成2-氯-4,5-二氟三氯甲苯，和（e）使 所述2-氯-4,5-二氟三氯甲烷与含水酸溶液不使用任何有机溶剂。 本发明还提供通过使上述步骤（e）的2-氯-4,5-二氟三氯甲苯与氧化锌反应来制备2-氯-4,5-二氟苯甲酰氯的方法。

    IMAGE SENSOR WITH SHAKING COMPENSATION
    9.
    发明申请
    IMAGE SENSOR WITH SHAKING COMPENSATION 审中-公开
    具有SHAKING补偿的图像传感器

    公开(公告)号：US20110109752A1

    公开(公告)日：2011-05-12

    申请号：US12616583

    申请日：2009-11-11

    申请人： Ho Seong Lee

    发明人： Ho Seong Lee

    IPC分类号： H04N5/228

    CPC分类号： H04N5/23248 ,  H04N5/23254 ,  H04N5/345

    摘要： A camera includes a main pixel array, one or more shaking detection pixel groups, and logic circuitry. The main pixel array can generate image frames of an image at an image frame rate. The one or more shaking detection pixel groups can generate shaking detection data where one or more pixels of the first shaking detection pixel group are sampled at a rate that is faster than the image frame rate. The logic circuitry can evaluate the shaking detection data to select a frame of the generated image frames after receiving a picture taking signal.

    摘要翻译： 相机包括主像素阵列，一个或多个抖动检测像素组和逻辑电路。 主像素阵列可以以图像帧速率生成图像的图像帧。 一个或多个抖动检测像素组可以产生其中以比图像帧速率更快的速率对第一抖动检测像素组的一个或多个像素进行采样的抖动检测数据。 逻辑电路可以在接收到拍摄信号之后评估摇动检测数据以选择所生成的图像帧的帧。

    CHIRAL SALEN CATALYSTS AND METHODS FOR THE PREPARATION OF CHIRAL COMPOUNDS FROM RACEMIC EPOXIDES BY USING THEM
    10.
    发明申请
    CHIRAL SALEN CATALYSTS AND METHODS FOR THE PREPARATION OF CHIRAL COMPOUNDS FROM RACEMIC EPOXIDES BY USING THEM 审中-公开
    CHALAL SALEN催化剂和使用它们从环氧化合物制备化合物的方法

    公开(公告)号：US20100087662A1

    公开(公告)日：2010-04-08

    申请号：US12522058

    申请日：2008-05-23

    申请人： Ho Seong Lee

    发明人： Ho Seong Lee

    IPC分类号： C07D327/10 ,  C07F17/00 ,  C07D301/27 ,  C07C31/20

    CPC分类号： C07F15/065 ,  Y02P20/584

    摘要： The present invention relates to new chiral salen catalysts and the preparation method of chiral compounds from racemic epoxides using the same. More specifically, it relates to new chiral salen catalysts that have high catalytic activity due to new molecular structures and have no or little racemization of the generated target chiral compounds even after the reaction is completed and can be also reused without catalyst regeneration treatment, and its economical preparation method to mass manufacture chiral compounds of high optical purity, which can be used as raw materials for chiral food additives, chiral drugs, or chiral crop protection agents, etc., using the new chiral salen catalysts.

    摘要翻译： 本发明涉及新的手性盐酸催化剂和使用其的外消旋环氧化物的手性化合物的制备方法。 更具体地说，涉及由于新的分子结构而具有高催化活性的新型手性盐酸催化剂，即使在反应完成后也不会产生目标手性化合物的外消旋化，也可在不进行催化剂再生处理的情况下重复使用， 大量制备高光学纯度的手性化合物的经济制备方法，其可以用作手性食品添加剂的原料，手性药物或手性作物保护剂等，使用新的手性盐酸催化剂。