公开(公告)号：US4476320A

公开(公告)日：1984-10-09

申请号：US431856

申请日：1982-09-29

申请人： Herbert Diehl ,  Heinrich Pelster ,  Hubert Habetz

发明人： Herbert Diehl ,  Heinrich Pelster ,  Hubert Habetz

IPC分类号： C07C43/225 ,  C07B39/00 ,  C07C17/00 ,  C07C17/093 ,  C07C25/13 ,  C07C41/00 ,  C07C41/22 ,  C07C51/00 ,  C07C63/68 ,  C07C67/00 ,  C07C69/76

CPC分类号： C07C41/22 ,  C07B39/00 ,  C07C17/093

摘要： Ortho-substituted fluoroaromatic compounds are prepared by reaction of corresponding anilines, which are substituted in the o-position, with alkyl nitrites in the presence of alcohols and/or ethers and in the presence of boron trifluoride or boric acid esters and hydrogen fluoride, and by isolation and decomposition of the diazonium tetrafluoborate produced.

摘要翻译： 正构取代的氟代芳族化合物通过在醇和/或醚的存在下和在三氟化硼或硼酸酯和氟化氢的存在下，在邻位取代的相应的苯胺与烷基亚硝酸盐反应制备，和 通过分离和分解生成的四氟硼酸重氮化钠。

公开(公告)号：US4562010A

公开(公告)日：1985-12-31

申请号：US703373

申请日：1985-02-20

申请人： Karl Goliasch ,  Herbert Muller ,  Heinrich Pelster

发明人： Karl Goliasch ,  Herbert Muller ,  Heinrich Pelster

IPC分类号： C07C63/06 ,  C07C51/00 ,  C07C51/56 ,  C07C67/00

CPC分类号： C07C51/56

摘要： A process for preparing benzoic anhydride which comprises contacting benzotrichloride with benzoic acid in a molar ratio of 1:2-3 at a temperature in the range of 100.degree.-200.degree. C.

摘要翻译： 一种制备苯甲酸酐的方法，其包括使苯并三氯与摩尔比为1:2-3的苯甲酸在100℃-200℃的温度下接触。

公开(公告)号：US4038328A

公开(公告)日：1977-07-26

申请号：US645983

申请日：1976-01-02

申请人： Heinrich Pelster ,  Uwe Beck

发明人： Heinrich Pelster ,  Uwe Beck

IPC分类号： C07C309/42 ,  C07C67/00 ,  C07C201/00 ,  C07C205/26 ,  C07C301/00 ,  C07C303/06 ,  C07C303/22 ,  C07C79/32 ,  C07C39/26

CPC分类号： C07C201/10 ,  C07C303/06 ,  C07C303/22

摘要： 2-NITRO-4,6-DICHLORO-5-METHYLPHENOL IS PREPARED BY THE SULFONATION OF 4-CHLORO-5-METHYLPHENOL TO FORM 2-SULFO-4-CHLORO-5-METHYLPHENOL WHICH IS CHLORINATED TO 2-SULFO-4,6-DICHLORO-5-METHYLPHENOL WHICH IS IN TURN REACTED WITH NITRIC ACID TO FORM THE DESIRED PRODUCT. The sulfonation is carried out with concentrated sulfuric acid at elevated temperatures to form 2-sulfo-4-chloro-5-methylphenol. Thereafter the reaction mixture is diluted with water to a sulfuric acid content of 20-30%. The resulting 2-sulfo-4-chloro-5-methylphenol is chlorinated with chlorine at elevated temperature and normal or elevated pressures to form 2-sulfo-4,6-dichloro-5-methylphenol which is then reacted with nitric acid.

公开(公告)号：US5087754A

公开(公告)日：1992-02-11

申请号：US567478

申请日：1990-08-13

申请人： Hans-Josef Buysch ,  Heinrich Pelster ,  Lothar Puppe ,  Peter Wimmer

发明人： Hans-Josef Buysch ,  Heinrich Pelster ,  Lothar Puppe ,  Peter Wimmer

IPC分类号： B01J29/06 ,  B01J29/70 ,  C07B61/00 ,  C07C209/14 ,  C07C209/18 ,  C07C211/48

CPC分类号： C07C209/18

摘要： N,N-dialkylanilines can be prepared by reacting the anilines on which they are based with lower alcohols or with the corresponding ethers, at an increased temperature in the gas phase in the presence of a proton-containing zeolite catalyst of the pentasil type having an SiO.sub.2 /Al.sub.2 O.sub.3 ratio of >60, it being advantageous to carry out the alkylation process under a pressure of 2-30 bar.

摘要翻译： N，N-二烷基苯胺可以通过使它们所基于的苯胺与低级醇或相应的醚反应，在气相中升高的温度下，在具有五 SiO 2 / Al 2 O 3比> 60，有利的是在2-30巴的压力下进行烷基化工艺。

公开(公告)号：US4600542A

公开(公告)日：1986-07-15

申请号：US232797

申请日：1981-02-09

申请人： Otto Lindner ,  Heinrich Pelster ,  Guido Steffan ,  Arnd Stuwe

发明人： Otto Lindner ,  Heinrich Pelster ,  Guido Steffan ,  Arnd Stuwe

IPC分类号： C07C309/43 ,  C07C67/00 ,  C07C301/00 ,  C07C303/00 ,  C07C303/06 ,  C07C309/35 ,  C07C143/24

CPC分类号： C07C309/00

摘要： The invention concerns new sulfonation products of naphthalene, process for their preparation according to which naphthalene is sulfonated under special reaction conditions by sulfur trioxide in inert organic solvents. The new sulfonation products are used as intermediates e.g. for the production of naphthalene-1,5-disulfonic acid.

摘要翻译： 本发明涉及萘的新磺化产物，其制备方法是根据其在惰性有机溶剂中的三氧化硫在特殊反应条件下将萘磺化的方法。 新的磺化产物用作例如中间体。 用于生产萘-1,5-二磺酸。