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14 条记录 (耗时 0.017 秒)

    Process for the manufacture of carboxylic acid chlorides
    1.
    发明授权
    Process for the manufacture of carboxylic acid chlorides 失效
    制备羧酸氯化物的方法

    公开(公告)号：US3962326A

    公开(公告)日：1976-06-08

    申请号：US463826

    申请日：1974-04-24

    申请人： Gunther Semler ,  Georg Schaeffer ,  Karl Waldmann

    发明人： Gunther Semler ,  Georg Schaeffer ,  Karl Waldmann

    IPC分类号： C07C53/38 ,  C07B61/00 ,  C07C51/00 ,  C07C51/60 ,  C07C55/36 ,  C07C57/64 ,  C07C63/00 ,  C07C67/00 ,  C07C51/58

    CPC分类号： C07C51/60

    摘要： Process for preparing carboxylic acid chlorides by reaction of carboxylic acids or carboxylic anhydrides with phosgene at temperatures of from 0.degree. to 180.degree.C in the presence of a catalyst, wherein 0.01 to 10 weight percent, calculated on the carboxylic acid or the carboxylic anhydride, of trisubstituted phosphine oxides or trisubstituted phosphine sulfides or reaction products of these compounds with phosgene and/or acids or acid anhydrides or mixtures of these compounds are used as catalyst.

    摘要翻译： 通过羧酸或羧酸酐与光气在0℃至180℃的温度下在催化剂存在下反应制备羧酸氯化物的方法，其中0.01至10％（重量）按羧酸或羧酸酐计算， 三取代膦氧化物或三取代膦硫化物或这些化合物与光气和/或酸或酸酐或这些化合物的混合物的反应产物用作催化剂。

    Process for the preparation of carbamoyl chlorides derived from secondary amines
    2.
    发明授权
    Process for the preparation of carbamoyl chlorides derived from secondary amines 失效
    制备衍生自仲胺的氨基甲酰氯的方法

    公开(公告)号：US4770820A

    公开(公告)日：1988-09-13

    申请号：US851952

    申请日：1986-04-14

    申请人： Gunther Semler ,  Georg Schaeffer

    发明人： Gunther Semler ,  Georg Schaeffer

    IPC分类号： C07C271/04 ,  C07C67/00 ,  C07C239/00 ,  C07C271/02 ,  C07C125/03

    CPC分类号： C07C271/02

    摘要： Carbamoyl chlorides derived from secondary aliphatic amines having alkyl groups which are branched in the 1-position are prepared by passing phosgene at an elevated temperature into the corresponding, initially taken--if appropriate dissolved in an inert solvent--secondary aliphatic amines having alkyl groups which are branched in the 1-position.The reaction products are intermediates in various specialized fields, particularly in the plant protection sector.

    摘要翻译： 衍生自具有1位支链的烷基的仲脂族胺的氨基甲酰氯通过将光气在升高的温度下进入适当的溶剂制备，溶解在相应的溶剂中，溶解在具有烷基的惰性溶剂 - 仲脂肪族胺中 在1位分支。 反应产物是各种专业领域的中间体，特别是植物保护领域。

    Process for the preparation of thiochloroformates
    3.
    发明授权
    Process for the preparation of thiochloroformates 失效
    制备硫代氯甲酸酯的方法

    公开(公告)号：US4340746A

    公开(公告)日：1982-07-20

    申请号：US181428

    申请日：1980-08-26

    申请人： Gunther Semler ,  Georg Schaeffer

    发明人： Gunther Semler ,  Georg Schaeffer

    IPC分类号： C07B61/00 ,  B01J31/00 ,  B01J31/02 ,  C07C67/00 ,  C07C313/00 ,  C07C329/00 ,  C07C329/02 ,  C07D307/38 ,  C07D333/10 ,  C07C153/11

    CPC分类号： C07C329/00

    摘要： Thiochloroformates are prepared by reaction of mercaptans with phosgene in the presence of carboxylic acid amides and/or urea derivatives as catalysts in amounts smaller than hitherto known for this application. The amounts range from about 0.02 to 0.2 mol %, relative to the corresponding starting mercaptan. Despite the small amounts of catalyst the reaction proceeds as with the use of larger catalyst amounts; however, work-up is simplified and the product yields are increased in most cases.

    摘要翻译： 在羧酸酰胺和/或脲衍生物作为催化剂的存在下，硫醇与光气反应制备硫代氯甲酸酯，其量小于迄今为止已知的用于本申请的量。 相对于相应的起始硫醇，其量为约0.02至0.2摩尔％。 尽管催化剂的量少，反应也随着使用较大的催化剂量而进行; 然而，在大多数情况下，后处理被简化，产品产量增加。

    Process for the preparation of chloroformic acid aryl esters and cyclic carbonates
    4.
    发明授权
    Process for the preparation of chloroformic acid aryl esters and cyclic carbonates 失效
    氯甲酸芳酯和环状碳酸酯的制备方法

    公开(公告)号：US4085129A

    公开(公告)日：1978-04-18

    申请号：US727332

    申请日：1976-09-28

    申请人： Gunther Semler ,  Georg Schaeffer

    发明人： Gunther Semler ,  Georg Schaeffer

    IPC分类号： C07C68/02 ,  C07C69/96 ,  C07D317/70

    CPC分类号： C07C69/96 ,  C07C68/02 ,  C07D317/70

    摘要： A process for the preparation of chloroformic acid aryl-esters and cyclic carbonates of aryl compounds containing at least two phenolic hydroxy groups wherein aromatic compounds containing one or more hydroxy groups linked to an aromatic nucleus, are reacted with phosgene in the presence of catalytic amounts of N,N-disubstituted acid amide either under pressure or without pressure while removing the hydrogen chloride continuously from the reaction mixture. This improved process results in almost quantitative or very high yields of pure products and avoids problems such as disposal of waste water.

    摘要翻译： 制备含有至少两个酚羟基的芳基化合物的氯甲酸芳酯和环状碳酸酯的方法，其中含有一个或多个与芳核连接的羟基的芳族化合物在光催化剂存在下与光气反应， N，N-二取代的酰胺，同时从反应混合物中连续除去氯化氢。 这种改进的过程导致纯产品的几乎定量或非常高的产量，并且避免诸如处理废水的问题。

    Process for the manufacture of ketones
    7.
    发明授权
    Process for the manufacture of ketones 失效
    制造酮的方法

    公开(公告)号：US4266066A

    公开(公告)日：1981-05-05

    申请号：US97792

    申请日：1979-11-26

    申请人： Werner Spielmann ,  Georg Schaeffer

    发明人： Werner Spielmann ,  Georg Schaeffer

    IPC分类号： C07C45/45 ,  C07C45/75 ,  C07D307/46 ,  C07D333/16 ,  C07D333/22 ,  C07C45/00 ,  C07D307/12

    CPC分类号： C07D333/22 ,  C07C201/12 ,  C07C45/45 ,  C07D307/46

    摘要： Ketones are prepared by reacting carboxylic acid halides, in particular carboxylic acid chlorides, with aluminum-alkyl compounds, optionally in the presence of an aluminum trihalide, in methylene chloride as the solvent, at a temperature between about 20.degree. and about 100.degree. C., preferably between about 30.degree. and about 60.degree. C., more preferably of about 40.degree. C. which is the reflux temperature of the methylene chloride. When operating at a temperature above approximately 40.degree. C., pressure higher than atmospheric is applied. The reaction mixture is worked up in usual manner, suitably by decomposition with water followed by distillation.

    摘要翻译： 在约20℃至约100℃的温度下，通过羧酸卤化物，特别是羧酸氯化物，任选在三卤化铝存在下，在二氯甲烷中作为溶剂，使羧酸卤化物与铝 - 烷基化合物反应制备酮。 ，优选约30℃至约60℃，更优选约40℃，其为二氯甲烷的回流温度。 当在高于约40℃的温度下操作时，施加高于大气压的压力。 反应混合物以常规方式处理，适当地用水分解后蒸馏。

    Process for the preparation of diphenyl ethers
    9.
    发明授权
    Process for the preparation of diphenyl ethers 失效
    二苯醚的制备方法

    公开(公告)号：US4564712A

    公开(公告)日：1986-01-14

    申请号：US554378

    申请日：1983-11-23

    申请人： Herbert Kuckertz ,  Georg Schaeffer

    发明人： Herbert Kuckertz ,  Georg Schaeffer

    IPC分类号： C07C43/257 ,  B01J27/00 ,  B01J27/232 ,  B01J31/00 ,  C07B61/00 ,  C07C41/00 ,  C07C41/16 ,  C07C43/263 ,  C07C43/275 ,  C07C43/29 ,  C07C45/70 ,  C07C67/00

    CPC分类号： C07C45/70 ,  C07C41/16

    摘要： Diphenyl ethers are prepared by Ullmann reaction of alkali metal phenolates with halobenzenes in the presence of basic copper carbonate and/or copper salts of lower aliphatic carboxylic acids as catalysts. These special catalysts have a better catalytic activity than other copper catalysts known for the Ullmann reaction.The diphenyl ethers prepared or obtainable according to the invention are mainly intermediates in diverse fields such as pharmaceuticals or plant protecting agents.

    摘要翻译： 在碱性碳酸铜和/或低级脂族羧酸的铜盐作为催化剂的存在下，碱金属酚盐与卤代苯的Ullmann反应制备二苯醚。 这些特殊的催化剂具有比其他已知用于乌尔曼反应的铜催化剂更好的催化活性。 根据本发明制备或可获得的二苯醚主要是各种领域的中间体，例如药物或植物保护剂。