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    Preparation of carboxylic chlorides
    1.
    发明授权
    Preparation of carboxylic chlorides 失效
    羧酸氯化物的制备

    公开(公告)号：US5200560A

    公开(公告)日：1993-04-06

    申请号：US908439

    申请日：1992-06-30

    申请人： Thomas M. Kahl ,  Jochem Henkelmann ,  Leopold Hupfer ,  Wolfgang Franzischka ,  Wolfgang Schwarz

    发明人： Thomas M. Kahl ,  Jochem Henkelmann ,  Leopold Hupfer ,  Wolfgang Franzischka ,  Wolfgang Schwarz

    IPC分类号： C07C51/60

    CPC分类号： C07C51/60

    摘要： A process for the preparation of a carboxylic chloride of the general formula I ##STR1## in which R denotes C.sub.1 -C.sub.30 -alkyl, C.sub.2 -C.sub.30 -alkenyl or C.sub.2 -C.sub.30 -alkynyl, from a carboxylic acid of the general formula II ##STR2## in which R has the meanings stated, and phosgene COCl.sub.2 (III), in the presence of a catalyst adduct comprising phosgene and N,N-disubstituted formamide of the general formula IV ##STR3## in which R.sup.1 and R.sup.2 are independently C.sub.1 -C.sub.3 -alkyl or R.sup.1 and R.sup.2 together form a C.sub.4 - or C.sub.5 -alkylene chain which may or may not be interrupted by an oxygen atom or by a nitrogen atom carrying a C.sub.1 -C.sub.3 -alkyl group or CHO, the product being isolated by phase separation, wherein the amount of phosgene added to the formamide (IV) is from 20 to 70% molar, based on the formamide.

    摘要翻译： 由通式I（I）表示的羧酸的制备方法，其中R表示C 1 -C 30 - 烷基，C 2 -C 30 - 烯基或C 2 -C 30炔基，由通式 （II）其中R具有所述的含义，和光气COCl 2（III），在包含光气和N，N-二取代的通式IV（IV）的甲酰胺的催化剂加合物的存在下，在 其中R 1和R 2独立地是C 1 -C 3 - 烷基或R 1和R 2一起形成C4-或C5-亚烷基链，其可以被氧原子或可以不被氧原子中断或可以被携带C1-C3-烷基的氮原子或 CHO，通过相分离分离产物，其中加甲酰胺（IV）中的光气的量为甲酰胺为20-70％摩尔。

    Removal of phosgene from off-gases
    2.
    发明授权
    Removal of phosgene from off-gases 失效
    从废气中去除磷灰石

    公开(公告)号：US5200163A

    公开(公告)日：1993-04-06

    申请号：US785288

    申请日：1991-10-30

    申请人： Jochem Henkelmann ,  Thomas M. Kahl ,  Irene Troetsch-Schaller ,  Leopold Hupfer ,  Wolfgang Franzischka ,  Wolfgang Schwarz

    发明人： Jochem Henkelmann ,  Thomas M. Kahl ,  Irene Troetsch-Schaller ,  Leopold Hupfer ,  Wolfgang Franzischka ,  Wolfgang Schwarz

    IPC分类号： B01D53/70

    CPC分类号： B01D53/70

    摘要： To remove phosgene from off-gases, the former is reacted in a washing zone with a liquid which contains or is composed of compounds of the formula ##STR1## where R.sub.1 and R.sub.2 are identical or different and are each aliphatic or cycloaliphatic alkyl of 1 to 8 carbons, or R.sub.1 and R.sub.2 are --(CH.sub.2).sub.n -- where n is 4 or 5, R.sub.3 is hydrogen or aliphatic or cycloaliphatic alkyl of 1 to 6 carbon atoms, or R.sub.1 or R.sub.2 and R.sub.3 are --(CH.sub.2).sub.m -- where m is 3, 4 or 5.The liquid can be regenerated by the addition of water, and the regenerated liquid can be returned to the washing zone.

    摘要翻译： 为了从废气中除去光气，前者在洗涤区与液体反应，该液体含有或由式（Ⅰ）的化合物组成，其中R 1和R 2相同或不同，并且各自为脂族或脂环族烷基， 8个碳，或者R1和R2是 - （CH2）n-，其中n是4或5，R3是氢或1到6个碳原子的脂族或脂环族烷基，或者R1或R2和R3是 - （CH2）m-，其中 m为3,4或5.液体可以通过加水再生，再生液体可以返回到洗涤区。

    Method for producing o-chloromethyl benzoic acid chlorides
    10.
    发明授权
    Method for producing o-chloromethyl benzoic acid chlorides 失效
    邻氯甲基苯甲酸氯化物的生产方法

    公开(公告)号：US07034181B1

    公开(公告)日：2006-04-25

    申请号：US10130821

    申请日：2000-11-27

    申请人： Roland Götz ,  Norbert Götz ,  Michael Keil ,  Bernd Wolf ,  Adrian Steinmetz ,  Armin Stamm ,  Jochem Henkelmann

    发明人： Roland Götz ,  Norbert Götz ,  Michael Keil ,  Bernd Wolf ,  Adrian Steinmetz ,  Armin Stamm ,  Jochem Henkelmann

    IPC分类号： C07C51/58

    CPC分类号： C07C51/60 ,  C07C63/10

    摘要： The invention relates to a method for producing o-chloromethyl benzoic acid chlorides of formula (I), in which R1 to R4 can be the same or different and represent hydrogen C1–C4 alkyl, halogen or trifluoromethyl, by reaction benzo condensed lactones of formula (II), in which R1 to R4 have the above-mentioned meaning, with thionyl chloride. The inventive method is characterized in that the reaction is carried out in the presence of catalytic quantities of a Lewis acid and in the presence of catalytic quantities of a phosphine derivative.

    摘要翻译： 本发明涉及一种制备式（I）的邻氯甲基苯甲酰氯的方法，其中R 1至R 4可以相同或不同，表示氢 C 1 -C 4烷基，卤素或三氟甲基，通过反应式（II）的苯并稠合内酯，其中R 1至R 4， SUP> 4 具有上述含义，与亚硫酰氯。 本发明的方法的特征在于反应在催化量的路易斯酸存在下和在催化量的膦衍生物的存在下进行。