公开(公告)号：US4026944A

公开(公告)日：1977-05-31

申请号：US594490

申请日：1975-07-09

申请人： Walter Bohm ,  Heinz Ulrich Blank ,  Guido Skipka ,  Friedrich Durholz

发明人： Walter Bohm ,  Heinz Ulrich Blank ,  Guido Skipka ,  Friedrich Durholz

IPC分类号： C07C211/58 ,  C07C67/00 ,  C07C209/00 ,  C07C209/36 ,  C07C85/11

CPC分类号： C07C209/36

摘要： Diamino naphthalene having the formula ##STR1## wherein R.sup.1 is hydrogen or amino is prepared by treating dinitro naphthalene having the formula ##STR2## wherein R.sup.2 is hydrogen or nitro WITH HYDROGEN IN THE PRESENCE OF HYDROGENATION CATALYSTS AND ORGANIC SOLVENTS HAVING THE FORMULA ##STR3## wherein R.sup.3 is hydrogen, halogen or alkyl;R.sup.4 is hydrogen, halogen, alkyl, hydroxy, alkoxy, amino, alkylamino, or dialkyl amino;R.sup.5 is hydrogen, chlorine, alkyl, hydroxy, alkoxy, amino, alkylamino or dialkyl amino;R.sup.6 and R.sup.7 are the same or different and are either hydrogen or alkyl or together form a --(CH.sub.2).sub.4 group, optionally substituted once or several times by methyl and/ethyl.

摘要翻译： 具有式“IMAGE”的二氨基萘其中R 1是氢或氨基，是通过在氢化催化剂和有机溶剂存在下制备具有式“IMAGE”的二硝基萘，其中R 2是氢或硝基， R3是氢，卤素或烷基; R4是氢，卤素，烷基，羟基，烷氧基，氨基，烷基氨基或二烷基氨基; R5是氢，氯，烷基，羟基，烷氧基，氨基，烷基氨基或二烷基氨基; R 6和R 7相同或不同，为氢或烷基或一起形成 - （CH 2）4基团，任选被甲基和/乙基取代一次或几次。

公开(公告)号：US4053526A

公开(公告)日：1977-10-11

申请号：US672689

申请日：1976-04-01

申请人： Heinz Ulrich Blank ,  Friedrich Durholz ,  Guido Skipka

发明人： Heinz Ulrich Blank ,  Friedrich Durholz ,  Guido Skipka

IPC分类号： C07C205/05 ,  C07C67/00 ,  C07C201/00 ,  C07C201/16 ,  C07C79/10

CPC分类号： C07C201/16

摘要： 1,5- AND 1,8-DINITRONAPHTHALENES ARE ISOLATED FROM MIXTURES OF ISOMETRIC DINITRONAPHTHALENES AT LEAST CONTAINING THE SAME. The mixture of isomers is treated successively with a more polar solvent and a less polar aromatic solvent for dinitronaphthalenes thereby dissolving the mixture of isomers except for 1,5-dinitronaphthalenes which remains largely undissolved in the more polar solvent. The residual mixture of isomers is subsequently treated, after removal of the more polar solvent, with a less polar aromatic solvent at elevated temperatures in which 1,8-dinitronaphthalenes remains as a largely insoluble residue.

公开(公告)号：US4680146A

公开(公告)日：1987-07-14

申请号：US861486

申请日：1986-05-09

申请人： Guido Skipka ,  Friedrich Durholz

发明人： Guido Skipka ,  Friedrich Durholz

IPC分类号： C07C309/40 ,  C07C67/00 ,  C07C301/00 ,  C07C303/22 ,  C07C303/32 ,  C07C309/42 ,  C07C143/24

CPC分类号： C07C309/00

摘要： 4,4-40 -Dinitrostilbene-2,2'-disulphonic acid salts are prepared by the oxidation of 4-nitrotoluene-2-sulphonic acid or salts thereof in an aqueous alkaline medium, by adding potassium, calcium and/or magnesium ions during the reaction at the rate of which 4,4'-dinitrostilbene-2,2'-disulphonic acid is formed, the amount of added potassium, calcium and/or magnesium ions at any point during the reaction being 10 to 150 mol %, relative to the amount of 4,4'-dinitrostilbene-2,2'-disulphonic acid present in the reaction mixture at that particular time, and by removing the precipitated salt of 4,4'-dinitrostilbene-2,2'-disulphonic acid.

摘要翻译： 通过在碱性水溶液中氧化4-硝基甲苯-2-磺酸或其盐，通过加入钾，钙和/或镁离子来制备4,4-40-二硝基二苯乙烯-2,2'-二磺酸盐 形成4,4'-二硝基二苯乙烯-2,2'-二磺酸的速率下的反应，反应过程中任何一点加入的钾，钙和/或镁离子的量相对于10〜150摩尔％ 相对于在该特定时间存在于反应混合物中的4,4'-二硝基二苯乙烯-2,2'-二磺酸的量，并且通过除去4,4'-二硝基二茋-2,2'-二磺酸的沉淀盐。

公开(公告)号：US4036838A

公开(公告)日：1977-07-19

申请号：US537624

申请日：1974-12-30

申请人： Axel Vogel ,  Friedrich Durholz ,  Rudolf Sundermann ,  Guido Skipka

发明人： Axel Vogel ,  Friedrich Durholz ,  Rudolf Sundermann ,  Guido Skipka

IPC分类号： C07D333/76 ,  B01J31/00 ,  C07B43/02 ,  C07B61/00 ,  C07C67/00 ,  C07C201/00 ,  C07C201/08 ,  C07C201/12 ,  C07C205/05 ,  C07C205/06 ,  C07C205/12 ,  C07C205/44 ,  C07C205/45 ,  C07C205/46 ,  C07C205/47 ,  C07C205/57 ,  C07C205/58 ,  C07C205/60 ,  C07C205/61 ,  C07C301/00 ,  C07C303/22 ,  C07C309/40 ,  C07C317/14 ,  C07D213/55 ,  C07D213/89 ,  C07D239/00

CPC分类号： C07B43/02 ,  C07C201/08 ,  C07C317/00

摘要： Nitroderivates of aromatic compounds which are difficult to nitrate, can readily be obtained by nitration providing that the aromatic compound is treated with nitric acid or another nitrating agent in the presence of aliphatic or cycloaliphatic hydrocarbons monosubstituted or polysubstituted by halogen, the nitro group or an alkyl sulphonyl group, and the nitro derivative formed subsequently isolated.

摘要翻译： 通过硝化容易地获得难以硝酸盐的芳族化合物的硝基衍生物，条件是芳族化合物在硝酸或其它硝化剂的存在下，在被卤素单取代或多取代的脂族或脂环族烃存在下，硝基或烷基 磺酰基和随后分离的硝基衍生物。

公开(公告)号：US3931255A

公开(公告)日：1976-01-06

申请号：US527797

申请日：1974-11-27

申请人： Friedrich Durholz ,  Rolf Putter

发明人： Friedrich Durholz ,  Rolf Putter

IPC分类号： C07C205/45 ,  C07C20060101 ,  C07C67/00 ,  C07C201/00 ,  C07C76/02

CPC分类号： C07C205/46 ,  C07C201/12

摘要： 5-Nitro-1,4-naphthoquinone is prepared by reducing 8-nitro-1,4-naphthoquinone-1-oxime and/or 5-nitro-1,4-naphthoquinone-1-oxime in an aqueous and/or organic reaction medium in the presence of iron (II) ions and a hydrogen halide at a temperature in the range of from -20.degree. to 100.degree.C, and thereafter oxidizing the 8- and and/or 5-nitro-4-amino-1-naphthol formed, or the corresponding salt, optionally without intermediate isolation, at a temperature in the range of from -10.degree. to 100.degree.C to form the desired 5-nitro-1,4-naphthoquinone.

摘要翻译： 通过在水和/或有机反应中还原8-硝基-1,4-萘醌-1-肟和/或5-硝基-1,4-萘醌-1-肟制备5-硝基-1,4-萘醌 在铁（II）离子和卤化氢存在下，在-20℃至100℃的温度范围内培养，然后将8-和/或5-硝基-4-氨基-1- 萘酚或相应的盐，任选不经中间分离，在-10℃至100℃的温度范围内，形成所需的5-硝基-1,4-萘醌。

公开(公告)号：US4788011A

公开(公告)日：1988-11-29

申请号：US880623

申请日：1986-07-01

申请人： Roland Busse ,  Herbert Emde ,  Friedrich Durholz ,  Dietmar Mayer ,  Dorde Jovcic

发明人： Roland Busse ,  Herbert Emde ,  Friedrich Durholz ,  Dietmar Mayer ,  Dorde Jovcic

IPC分类号： B01F5/18 ,  B01D1/18 ,  B01F5/20 ,  B01J14/00 ,  B01J19/00 ,  B01J19/26 ,  C07B31/00 ,  C07B41/00 ,  C07B61/00 ,  C07B63/00 ,  C07C37/04 ,  C07C39/15 ,  C07C67/00 ,  C07C301/00 ,  C07C303/00 ,  C07C303/02 ,  C07C303/06 ,  C07C303/32 ,  C07C309/28 ,  C07C309/32 ,  C07C309/47 ,  C07C309/50 ,  C07C309/58 ,  C07C143/52 ,  C07C143/24 ,  C07C143/56

CPC分类号： C07C309/00 ,  B01J14/00 ,  B01J19/26 ,  B01J2219/00058 ,  B01J2219/00065

摘要： Reactions of liquid starting substances to give chemical compounds in which these chemical compounds are obtained as solids can be carried out by spraying the liquid starting substances from separate nozzles such that the liquid starting substances are mixed in the spray cones, which penetrate one another, and thereby react.

摘要翻译： 可以通过将液体起始物质从单独的喷嘴喷射，使得液体起始物质彼此渗透的喷雾锥体混合，从而得到液体起始物质得到其中获得这些化合物作为固体的化合物的反应， 从而作出反应。

公开(公告)号：US3998893A

公开(公告)日：1976-12-21

申请号：US651993

申请日：1976-01-23

申请人： Friedrich Durholz ,  Josef Heinen ,  Adolf Hamers

发明人： Friedrich Durholz ,  Josef Heinen ,  Adolf Hamers

IPC分类号： C07C67/00 ,  C07C201/00 ,  C07C205/06 ,  C07C79/10

CPC分类号： C07C201/08

摘要： Dinitronaphthalenes are prepared by reacting nitronaphthalene at temperatures of from 20.degree. to 50.degree. C which 60 to 80% strength by weight aqueous nitric acid. The resulting dinitronaphthalene is separated off in a known manner and the residual nitric acid is enriched until a concentration of 60 to 80% by weight is reached and is then recycled to the reaction.

公开(公告)号：US5679826A

公开(公告)日：1997-10-21

申请号：US735717

申请日：1996-10-23

申请人： Franz-Josef Mais ,  Thomas Essert ,  Helmut Fiege ,  Friedrich Durholz ,  Guido Steffan

发明人： Franz-Josef Mais ,  Thomas Essert ,  Helmut Fiege ,  Friedrich Durholz ,  Guido Steffan

IPC分类号： B01J31/02 ,  C07B61/00 ,  C07C253/30 ,  C07C255/10

CPC分类号： C07C253/30

摘要： 2-Chloroacrylonitrile is prepared in a particularly advantageous and readily industrially practicable manner by chlorinating acrylonitrile and then thermally cleaving the 2,3-diehloropropionitrile formed, by chlorinating acrylonitrile in the presence of a catalyst system comprising dimethylformamide and pyridine and/or pyridine derivatives and subjecting the resulting crude 2,3-dichloropropionitrile to thermal cleavage in the presence of the same catalyst system without the addition of further catalysts.

摘要翻译： 通过氯化丙烯腈，然后在包含二甲基甲酰胺和吡啶和/或吡啶衍生物的催化剂体系存在下，通过氯化丙烯腈热分解形成的2,3-二氯丙腈，制备2-氯丙烯腈， 所得粗制的2,3-二氯丙腈在相同的催化剂体系的存在下进行热裂解而不加入另外的催化剂。