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    Process for the preparation of enantiomerically pure (5, 5′-dichloro-6,6′-dimethoxy-biphenyl-2,2′-diyl)- bis(diphenylphosphine oxides)
    4.
    发明授权
    Process for the preparation of enantiomerically pure (5, 5′-dichloro-6,6′-dimethoxy-biphenyl-2,2′-diyl)- bis(diphenylphosphine oxides) 有权
    制备对映体纯（5，5'-二氯-6,6'-二甲氧基 - 联苯-2,2'-二基） - 双（二苯基膦氧化物）的方法

    公开(公告)号：US06489513B2

    公开(公告)日：2002-12-03

    申请号：US10010176

    申请日：2001-11-13

    申请人： Torsten Pohl ,  Thomas Prinz ,  Guido Giffels ,  Wolfram Sirges

    发明人： Torsten Pohl ,  Thomas Prinz ,  Guido Giffels ,  Wolfram Sirges

    IPC分类号： C07F953

    CPC分类号： C07F9/5329

    摘要： The invention relates to the preparation of enantiomerically pure bis-diphenylphosphine oxides in a particularly advantageous manner by (1) reacting an aromatic bromine compound with a diphenylphosphinic chloride in a mixture of tetrahydrofuran and an aromatic hydrocarbon to give a diphenylphosphine oxide, which is isolated from a solution in an aromatic hydrocarbon by adding a saturated aliphatic hydrocarbon; (2) metalating the resulting diphenylphosphine oxide in the 6-position and reacting the metalated diphenylphosphine oxide with iodine at temperatures not less than −25° C. in such a way that a small amount of iodine is always present in excess, giving a 2-iodo-diphenylphosphine oxide; (3) preparing a racemic bis-diphenylphosphine oxide from the resulting 2-iodo-diphenylphosphine oxide using copper and an aromatic hydrocarbon solvent and crystallizing the racemic bis-diphenylphosphine oxide from a solution in an aromatic hydrocarbon; and (4) separating isomers using an enantiomerically pure mono- or dicarboxylic acid to obtain a first enantiomer by crystallization from a solution in an aromatic hydrocarbon and obtaining a second enantiomer by hydrolysis and subsequent crystallization from a solution in an aromatic hydrocarbon.

    摘要翻译： 本发明涉及通过（1）使芳族溴化合物与二苯基次膦酰氯在四氢呋喃和芳族烃的混合物中反应得到二苯基氧化膦，特别有利的方法制备对映体纯双的二苯基膦氧化物，得到二苯基氧化膦 通过加入饱和脂肪烃在芳族烃中的溶液; （2）将得到的二苯基氧化膦金属化在6位上，并使金属化二苯基氧化膦与碘在不低于-25℃的温度下反应，使得少量的碘总是存在于过量的中，得到2 碘代二苯基氧化膦; （3）使用铜和芳烃溶剂从所得的2-碘 - 二苯基氧化膦制备外消旋二苯基二氧化膦氧化物，并从外来物质中溶解外消旋双 - 二苯基膦氧化物; 和（4）使用对映异构体纯的单羧酸或二羧酸分离异构体，以通过从芳族烃溶液中结晶获得第一对映异构体，并通过水解并随后从芳族烃溶液中结晶得到第二对映异构体。

    Process for preparing dialkyl dicarbonates
    8.
    发明授权
    Process for preparing dialkyl dicarbonates 有权
    制备二碳酸二烷基酯的方法

    公开(公告)号：US07420076B2

    公开(公告)日：2008-09-02

    申请号：US11596026

    申请日：2005-04-30

    申请人： Thomas Prinz ,  Markus Eckert ,  Hans-Ulrich Buschhaus ,  Steffen Kahlert

    发明人： Thomas Prinz ,  Markus Eckert ,  Hans-Ulrich Buschhaus ,  Steffen Kahlert

    IPC分类号： C07C69/96 ,  C07C51/56

    CPC分类号： C07C68/02 ,  C07C69/96

    摘要： The novel process for preparing dialkyl dicarbonates by reacting the corresponding alkyl haloformates with alkali metal hydroxides, alkaline earth metal hydroxides and/or carbonates in the presence of water-immiscible organic solvents and in the presence of a catalyst is characterized in that the catalyst used is at least one tertiary alkylamine of the formula (I) NR1R2R3,  (I) where the substituents are each as defined in the description.

    摘要翻译： 在与水不混溶的有机溶剂的存在下和在催化剂存在下，通过使相应的卤代甲酸烷基酯与碱金属氢氧化物，碱土金属氢氧化物和/或碳酸盐反应来制备二碳酸二烷基酯的新方法的特征在于所用的催化剂是 至少一种式（I）的叔烷基胺<？in-line-formula description =“In-line formula”end =“lead”？> NR 1 R 2 SUP / 取代基各自如说明书中所定义，其中取代基各自如在说明书中所定义。

    HEATABLE LIQUID CONTAINER MADE FROM PLASTIC MATERIAL AND PRODUCTION METHOD THEREFOR
    10.
    发明申请
    HEATABLE LIQUID CONTAINER MADE FROM PLASTIC MATERIAL AND PRODUCTION METHOD THEREFOR 有权
    由塑料材料制成的高温液体容器及其生产方法

    公开(公告)号：US20110064394A1

    公开(公告)日：2011-03-17

    申请号：US12878227

    申请日：2010-09-09

    申请人： Volker Bier ,  Thomas Prinz

    发明人： Volker Bier ,  Thomas Prinz

    IPC分类号： F24H1/18

    CPC分类号： F01N3/2066 ,  F01N2610/02 ,  F01N2610/10 ,  F01N2610/1406 ,  Y02T10/24

    摘要： A heatable liquid container made from plastic material, particularly for holding water/urea mixtures and having an internal cavity and a heating element arranged essentially in the internal cavity of the container, and with at least one connection end, the heating element is braced by a bracing element in at least one bearing area in the internal cavity of the liquid container. The heating element is supported in a horizontally floating manner by the bracing element. The bracing element is an insert part that is at least partially encased in the plastic material by sintering and is made from the same material as the inner wall of the liquid container.

    摘要翻译： 一种由塑料材料制成的可加热液体容器，特别是用于容纳水/尿素混合物并且具有基本上位于容器的内腔中的内腔和加热元件，并且至少一个连接端，加热元件由 支撑元件在液体容器的内腔中的至少一个支承区域中。 加热元件由支撑元件以水平浮动的方式支撑。 支撑元件是通过烧结至少部分地包封在塑料材料中并且由与液体容器的内壁相同的材料制成的插入部件。