公开(公告)号：US4277421A

公开(公告)日：1981-07-07

申请号：US94058

申请日：1979-11-14

申请人： Franz Landauer ,  Georg Schaeffer

发明人： Franz Landauer ,  Georg Schaeffer

IPC分类号： C07C22/04 ,  C07C25/02 ,  C07C25/13 ,  C07C45/43 ,  C07C45/80 ,  C07C45/85 ,  C07C47/542 ,  C07C47/55 ,  C07C63/06

CPC分类号： C07C45/80 ,  C07C22/04 ,  C07C25/02 ,  C07C25/13 ,  C07C45/43 ,  C07C45/85

摘要： p-tert.Butylbenzaldehyde and the derivatives thereof which are halogen-substituted at the nucleus are prepared by bromination of p-tert.butyltoluene and the derivatives thereof which are correspondingly halogen-substituted at the nucleus under side-chain halogenation conditions until the benzal bromide is obtained which is then saponified. Practically no undesired bromination at the nucleus or the tert.butyl group takes place.The products obtained are valuable intermediates for the manufacture of pharmaceutical agents, plant protecting agents and dyestuffs.

摘要翻译： 在核处被卤素取代的对叔丁基苯甲醛及其衍生物通过溴化对 - 叔丁基甲苯及其衍生物在侧链卤化条件下在核处相应地卤素取代直到亚苄基溴 得到，然后皂化。 实际上在核或叔丁基没有发生不期望的溴化。 获得的产品是用于制造药剂，植物保护剂和染料的有价值的中间体。

公开(公告)号：US4145283A

公开(公告)日：1979-03-20

申请号：US860374

申请日：1977-12-14

申请人： Alwin Topp ,  Klaus Schmiedel ,  Georg Schaeffer

发明人： Alwin Topp ,  Klaus Schmiedel ,  Georg Schaeffer

IPC分类号： C02F1/74 ,  C01D5/00 ,  C01D5/04 ,  C02F11/08 ,  C02C5/04

CPC分类号： C01D5/00 ,  C02F11/08

摘要： The waste water being formed upon the preparation of hydroxy aromatics, preferably of resorcinol and .beta.-naphthol, by caustic alkaline melt of the corresponding aryl-sulfonic acids or aryl sulfonates is purified by wet oxidation with oxygen or oxygen-containing gases at temperatures of from about 100.degree. to 370.degree. C. and under a pressure of from about 1 to 300 bars. The COD-decomposition rates amount to about 90% and more. When a hydroxy aromatic is prepared by means of a caustic soda melt, this process provides a sulfate, especially sodium sulfate, which is of sufficient purity for further use without complementary purification stages. The obtention of the pure salt is important for the economy of the process.

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。

公开(公告)号：US4110365A

公开(公告)日：1978-08-29

申请号：US590498

申请日：1975-06-26

申请人： Siegfried Bildstein ,  Rudolf Lademann ,  Siegfried Pietzsch ,  Georg Schaeffer

发明人： Siegfried Bildstein ,  Rudolf Lademann ,  Siegfried Pietzsch ,  Georg Schaeffer

IPC分类号： C07C143/24

CPC分类号： C07C309/00

摘要： Preparation of naphthalene-monosulfonic acids from naphthalene and sulfuric acid at elevated temperatures.

摘要翻译： 萘和硫酸在升高的温度下制备萘 - 单磺酸。