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    Process for the preparation of 2-chloro-6-nitrophenyl alkyl sulphides and novel 2-chloro-6-nitrophenyl alkyl sulphides
    13.
    发明授权
    Process for the preparation of 2-chloro-6-nitrophenyl alkyl sulphides and novel 2-chloro-6-nitrophenyl alkyl sulphides 失效
    2-氯-6-硝基苯基烷基硫化物和新的2-氯-6-硝基苯基烷基硫化物的制备方法

    公开(公告)号：US5650542A

    公开(公告)日：1997-07-22

    申请号：US554143

    申请日：1995-11-06

    Applicant: Helmut Fiege ,  Ferdinand Hagedorn

    Inventor： Helmut Fiege ,  Ferdinand Hagedorn

    IPC: B01J31/02 ,  C07B61/00 ,  C07C319/14 ,  C07C323/09 ,  C07C319/18

    CPC classification number: C07C319/14 ,  C07C2101/14

    Abstract: 2-Chloro-6-nitrophenyl alkyl sulphides of the formula ##STR1## in which the substituents are as defined in the description, can be prepared by reacting 2,3-dichloro-nitrobenzenes of the formula ##STR2## with mercaptans of the formulaHS-R.sup.1 (III)in the presence of 1-1.2 equivalents of a base per mole of mercaptan and in the presence of a phase transfer catalyst, at a temperature of 0.degree.-100.degree. C., in an aqueous or aqueous-organic medium. The majority of the 2-chloro- 6-nitrophenyl alkyl sulphides obtainable in this way are novel.

    Abstract translation: 其中取代基如说明书中所定义的式（I）的2-氯-6-硝基苯基烷基硫化物可以通过使式（II）的2,3-二氯 - 硝基苯与式 与式-H-R1（III）的硫醇在1-1.2当量碱/每摩尔硫醇存在下，在相转移催化剂存在下，在0-100℃的温度下，在水溶液 或水 - 有机介质。 以这种方式获得的大多数2-氯-6-硝基苯基烷基硫化物是新颖的。

    Process for the preparation of 2,4- or 2,6-dihalogeno-aniline
    14.
    发明授权
    Process for the preparation of 2,4- or 2,6-dihalogeno-aniline 失效
    制备2,4-或2,6-二卤代苯胺的方法

    公开(公告)号：US5145958A

    公开(公告)日：1992-09-08

    申请号：US799918

    申请日：1991-11-26

    Applicant: Wolfram Kissener ,  Helmut Fiege

    Inventor： Wolfram Kissener ,  Helmut Fiege

    IPC: C07C209/68 ,  C07C209/74 ,  C07C211/52

    CPC classification number: C07C209/74

    Abstract: 2,4- or 2,6-dihalogeno-aniline can be prepared by reacting an amino-benzoic acid ester of the formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 have the meanings indicated in the description, with 2-2.5 moles of a chlorinating or brominating agent in an inert reaction medium at a temperature of 40.degree.-160.degree. C. and subsequently hydrolyzing and decarboxylating the dihalogenated amino-benzoic acid ester.

    Abstract translation: 2,4-或2,6-二卤代苯胺可以通过使式（I）的氨基 - 苯甲酸酯与其中R1，R2和R3具有说明书所示含义的氨基 - 苯甲酸酯与2- 2.5摩尔氯化或溴化剂在惰性反应介质中，在40〜160℃下，随后水解和脱羧二卤代氨基 - 苯甲酸酯。

    Process for the isolation of alkylated aromatic amines
    15.
    发明授权
    Process for the isolation of alkylated aromatic amines 失效
    用于分离烷基化芳族胺的方法

    公开(公告)号：US4973759A

    公开(公告)日：1990-11-27

    申请号：US410183

    申请日：1989-09-20

    Applicant: Alfons Klein ,  Helmut Fiege

    Inventor： Alfons Klein ,  Helmut Fiege

    IPC: C07C209/86 ,  C07B61/00 ,  C07C209/84 ,  C07C211/45 ,  C07C211/50 ,  C07C211/52 ,  C07C211/54

    CPC classification number: C07C209/84

    Abstract: Alkylated aromatic amines can be isolated from crude catalyst-containing mixtures of these with olefins by a procedure in which in general equivalent amounts of an inorganic base and water are added to the alkylation mixture, the catalyst is hydrolysed, the water present in the reaction mixture after the hydrolysis is removed by distillation and the solid catalyst residue is separated off. The catalyst-free alkylation mixture which remains is then fed to customary further working up.

    Abstract translation: 烷基化芳族胺可以通过其中通常将等量的无机碱和水加入到烷基化混合物中，催化剂被水解，存在于反应混合物中的水的方法，从这些与烯烃的粗催化剂混合物中分离出来 在通过蒸馏除去水解后，分离固体催化剂残余物。 然后将剩余的不含催化剂的烷基化混合物进料至常规进一步加工。

    Process for the preparation of arylglyoxylic acids
    16.
    发明授权
    Process for the preparation of arylglyoxylic acids 失效
    芳基乙醛酸的制备方法

    公开(公告)号：US4221719A

    公开(公告)日：1980-09-09

    申请号：US62846

    申请日：1979-08-01

    Applicant: Helmut Fiege ,  Karlfried Wedemeyer

    Inventor： Helmut Fiege ,  Karlfried Wedemeyer

    IPC: C07C59/84 ,  B01J23/00 ,  B01J23/62 ,  B01J27/00 ,  B01J27/25 ,  B01J31/00 ,  C07B61/00 ,  C07C51/00 ,  C07C51/235 ,  C07C51/255 ,  C07C67/00 ,  C07D317/06 ,  C07C51/42

    CPC classification number: C07C51/235 ,  C07C51/255

    Abstract: Process for the preparation of an arylglyoxylic acid of the formula Ar--CO--COOH, wherein Ar is optionally substituted aryl, which process comprises oxidizing the corresponding arylethane-1,2-diol of the formula ##STR1## with oxygen or a gas containing molecular oxygen, in an aqueous alkaline medium and in the presence of a platinum-group metal catalyst and, as an activator, a material selected from lead, lead compounds, bismuth and bismuth compounds, at a temperature of up to the boiling point of the reaction mixture; e.g. phenylglyoxylic acid is produced from phenylethane-1,2-glycol preferably using platinum activated with lead, bismuth, or compounds thereof.

    Abstract translation: 制备式Ar-CO-COOH的芳基乙醛酸的方法，其中Ar是任选取代的芳基，该方法包括用式（I）氧化相应的式（I）的芳基乙烷-1,2-二醇与氧或 含有分子氧的气体，在含水碱性介质中，在铂族金属催化剂存在下，作为活化剂，选自铅，铅化合物，铋和铋化合物的材料，在最高沸点 点反应混合物; 例如 优选使用由铅，铋或其化合物活化的铂，由苯乙烷-1,2-二醇制备苯基乙醛酸。

    Process for the purification of phosphorus oxychloride
    19.
    发明授权
    Process for the purification of phosphorus oxychloride 失效
    磷酰氯的纯化方法

    公开(公告)号：US5911962A

    公开(公告)日：1999-06-15

    申请号：US113988

    申请日：1998-07-10

    Applicant: Franz-Josef Mais ,  Helmut Fiege

    Inventor： Franz-Josef Mais ,  Helmut Fiege

    IPC: C01B25/10

    CPC classification number: C01B25/10

    Abstract: Impure POCl.sub.3 is purified by distillation in the presence of high-boiling nitrogen compounds from the group consisting of the substituted pyridines and pyrimidines, the open-chain and cyclic aliphatic amines, the open-chain and cyclic amidines, the guanidines and the aromatic amines.

    Abstract translation: 不饱和POCl 3在高沸点氮化合物存在下，由取代的吡啶和嘧啶，开环和环状脂族胺，开链和环状脒，胍和芳族胺组成的组中进行蒸馏纯化。

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