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31. 发明授权

US5744643A Process for preparing aromatic amines 失效
标题翻译：制备芳香胺的方法
公开(公告)号：US5744643A
公开(公告)日：1998-04-28
申请号：US604572
申请日：1996-02-21
申请人： Matthias Beller , Ahmed Tafesh , Christian Kohlpaintner , Christoph Naumann
发明人： Matthias Beller , Ahmed Tafesh , Christian Kohlpaintner , Christoph Naumann
IPC分类号： B01J31/02 , C07B61/00 , C07C209/32 , C07C209/36 , C07C211/45 , C07C211/52 , C07C213/02 , C07C215/76 , C07C221/00 , C07C225/22 , C07C253/30 , C07C255/58
CPC分类号： C07C209/325 , C07C209/365 , C07C213/02 , C07C221/00 , C07C253/30
摘要： The present invention relates to a process for preparing aromatic amines by reacting an aromatic nitro compound with carbon monoxide in a solvent mixture comprising water and a water-insoluble organic solvent by means of a catalyst comprising palladium and a water-soluble phosphine under a pressure of from 5 to 300 bar and at a temperature of from 50 to 200.degree. C., and separating the aqueous phase and the organic phase.
摘要翻译：本发明涉及通过在包含水和不溶于水的有机溶剂的溶剂混合物中通过芳族硝基化合物与一氧化碳在含有钯和水溶性膦的催化剂的压力下反应来制备芳族胺的方法， 5至300巴，温度为50至200℃，分离水相和有机相。

32. 发明授权

US5689021A Raney-type catalysts for the hydrogenation of halonitroaromatic compounds 失效
标题翻译：用于氢化卤代硝基芳族化合物的阮内型催化剂
公开(公告)号：US5689021A
公开(公告)日：1997-11-18
申请号：US621971
申请日：1996-03-26
申请人： Georges Cordier , Jean-Pierre Damon , Pierre Fouilloux , Philippe Marion
发明人： Georges Cordier , Jean-Pierre Damon , Pierre Fouilloux , Philippe Marion
IPC分类号： B01J25/00 , B01J25/02 , C07B61/00 , C07C209/36 , C07C211/52 , C07C215/76 , C07C217/84 , C07C217/86 , C07C217/90 , C07C5/10 , C07C5/367
CPC分类号： B01J25/00 , C07C209/365
摘要： Halonitroaromatic compounds, e.g., 3-chloro-4-fluoronitrobenzene, are selectively hydrogenated into the corresponding haloaromatic amines, in the essential absence of hydrodehalogenation, by reacting same with hydrogen in the presence of a catalytically effective amount of a novel Raney-type catalyst composition consisting essentially of an alloy of nickel, aluminum and molybdenum, Ni/Al/Mo, the Al/Mo ratio by weight thereof being equal to or greater than 1.
摘要翻译：通过在催化有效量的新型阮内型催化剂组合物的存在下，使氢卤素化合物，例如3-氯-4-氟硝基苯，在基本不存在加氢脱卤的情况下，通过与氢反应，选择性氢化成相应的卤代芳族胺基本上由镍，铝和钼的合金，Ni / Al / Mo组成，Al / Mo的重量比等于或大于1。

33. 发明授权

US5629449A Controlled feed process for making 3, 5-diaminobenzotrifluoride 失效
标题翻译：制备3,5-二氨基三氟甲苯的控制进料方法
公开(公告)号：US5629449A
公开(公告)日：1997-05-13
申请号：US930942
申请日：1992-08-17
申请人： David E. Albright, Jr.
发明人： David E. Albright, Jr.
IPC分类号： B01J23/44 , C07B61/00 , C07C209/36 , C07C211/52 , C07C209/32
CPC分类号： C07C211/52 , C07C209/365
摘要： Disclosed is a method of making 3,5-diaminobenzotrifluoride from 4-chloro-3,5-dinitrobenzotrifluoride. A solution of 4-chloro-3,5-dinitrobenzotrifluoride in an alcohol is prepared. Separately, a slurry is prepared of a palladium catalyst on a suitable substrate, at least one equivalent of magnesium oxide per equivalent of 4-chloro-3,5-dinitrobenzotrifluoride, sufficient hydrogen-donating reducing agent to reduce the 4-chloro-3,5-dinitrobenzotrifluoride to 3,5-diaminobenzotrifluoride, and an amount of alcohol sufficient to make the slurry stirrable. The solution is added to the slurry with stirring at a rate that does not exceed the reaction rate of the 4-chloro-3,5-dinitrobenzotrifluoride so that no unreacted 4-chloro-3,5-dinitrobenzotrifluoride accumulates in the slurry. The reaction mixture is heated at about 75.degree. to about 100.degree. C.
摘要翻译：公开了从4-氯-3,5-二硝基三氟甲苯制备3,5-二氨基三氟甲苯的方法。制备4-氯-3,5-二硝基三氟甲苯在醇中的溶液。另外，在合适的底物上制备钯催化剂的浆液，每当量的4-氯-3,5-二硝基三氟甲苯至少一当量的氧化镁，足够的供氢还原剂以还原4-氯-3， 5-二硝基三氟甲苯至3,5-二氨基三氟甲苯，以及足以使浆料搅拌的量的醇。将溶液以不超过4-氯-3,5-二硝基三氟甲苯的反应速率的速度搅拌加入到浆料中，使得浆料中不会积聚未反应的4-氯-3,5-二硝基三氟甲苯。将反应混合物在约75℃至约100℃加热

34. 发明授权

US5294742A Process for preparing 3,5-difluoroaniline 失效
标题翻译：制备3,5-二氟苯胺的方法
公开(公告)号：US5294742A
公开(公告)日：1994-03-15
申请号：US032986
申请日：1993-02-18
申请人： Thomas Schach , Theodor Papenfuhs
发明人： Thomas Schach , Theodor Papenfuhs
IPC分类号： B01J23/44 , C07B61/00 , C07C17/00 , C07C17/093 , C07C25/13 , C07C205/12 , C07C209/36 , C07C211/52
CPC分类号： C07C209/365 , C07C17/093 , C07C201/12
摘要： Process for preparing 3,5-difluoroaniline, wherein(1) 2,4,5-trichloronitrobenzene is reacted with an alkali metal fluoride in the presence or absence of a polar aprotic solvent at temperatures of about 100.degree. C. to about 250.degree. C., and, after filtering off precipitated salts and fractional distillation of the crude solution,(2) the resulting 5-chloro-2,4-difluoronitrobenzene is chlorinated with denitration to give 1,3-dichloro-4,6-difluorobenzene in the absence of a Lewis acid or of another chlorination catalyst, using anhydrous chlorine gas at temperatures of about 80.degree. to about 250.degree. C., and(3) this compound is nitrated to give 2,6-dichloro-3,5-difluoronitrobenzene in oleum with mixed acid (sulfuric acid/nitric acid) at temperatures of about 15.degree. to about 80.degree. C., and(4) this compound is reduced with hydrogen in the presence of palladium as catalyst and in the presence of an inorganic or organic base at temperatures of about 40.degree. to about 250.degree. C.
摘要翻译：制备3,5-二氟苯胺的方法，其中（1）在约100℃至约250℃的温度下，在极性非质子溶剂存在或不存在下，将2,4,5-三氯硝基苯与碱金属氟化物反应在过滤沉淀的盐并分解粗溶液后，（2）将所得的5-氯-2,4-二氟硝基苯用脱硝进行氯化，得到1,3-二氯-4,6-二氟苯在约80℃至约250℃的温度下使用无水氯气，并且（3）将该化合物硝化，得到2,6-二氯-3,5-二氟硝基苯在约15℃至约80℃的温度下使用混合酸（硫酸/硝酸）的发烟硫酸，和（4）该化合物在钯作为催化剂存在下并在无机或有机物存在下用氢还原碱在约40度至约2℃的温度下进行 50摄氏度

35. 发明授权

US5288908A Process for the preparation of fluorine containing monomers 失效
标题翻译：含氟单体的制备方法
公开(公告)号：US5288908A
公开(公告)日：1994-02-22
申请号：US93932
申请日：1993-07-19
申请人： Jurgen Lau , Gunter Siegemund , Freimund Rohrscheid
发明人： Jurgen Lau , Gunter Siegemund , Freimund Rohrscheid
IPC分类号： C07B61/00 , C07C22/08 , C07C63/72 , C07C205/58 , C07C209/42 , C07C211/52 , C07C227/04 , C07C229/52 , C07C233/65 , C07C237/30 , C07C245/08 , C08G59/50 , C08G69/26 , C08G69/28 , C08G73/10 , C07C209/36
CPC分类号： C08G73/1039 , C07C17/266 , C07C201/08 , C07C209/365 , C07C211/52 , C07C22/08 , C07C227/04 , C07C233/65 , C07C245/08 , C07C51/29 , C07C63/72 , C08G69/26
摘要： Compounds of the formula ##STR1## in which X represents hydrogen, --NO.sub.2 or --NH.sub.2 and Y represents --CH.sub.3, --COOH, --CONH.sub.2, --NH.sub.2 or --N.dbd.N--Z, in which the group --Z is ##STR2## with the proviso that if Y represents the group --N.dbd.N--Z, X is only --NO.sub.2, and if Y represents the group --CH.sub.3, X is only hydrogen, are described. A compound of the formula ##STR3## the preparation of which in a multi-stage process, in which the compounds of the general formula (I) are also obtained, is described, is preferred.The resulting 3,4'-diamino compound is suitable for the preparation of polycondensates and shaped articles, films and fibers of high heat resistance.
摘要翻译：其中X表示氢，-NO 2或-NH 2且Y表示-CH 3，-COOH，-CONH 2，-NH 2或-N = NZ的式（I）的化合物，其中基团-Z为条件是如果Y表示基团-N = NZ，X仅为-NO 2，并且如果Y表示基团-CH 3，则X仅为氢。描述了其中也得到通式（I）的化合物的多阶段方法的制备的式（II）化合物。所得的3,4'-二氨基化合物适用于制备具有高耐热性的缩聚物和成型制品，薄膜和纤维。

36. 发明授权

US5120875A Process for the preparation of chlorine-substituted aromatic amines 失效
标题翻译：制备氯取代芳族氨基酸的方法
公开(公告)号：US5120875A
公开(公告)日：1992-06-09
申请号：US566593
申请日：1990-08-13
申请人： Udo Birkenstock , Ulrich Kappler , Herbert Schmidt , Jurgen Zander
发明人： Udo Birkenstock , Ulrich Kappler , Herbert Schmidt , Jurgen Zander
IPC分类号： B01J23/89 , C07B61/00 , C07C209/36 , C07C211/52
CPC分类号： C07C209/36 , C07C209/365
摘要： In the preparation of chlorinated aromatic amines by reaction of corresponding nitro compounds with hydrogen under pressure, at elevated temperature and in the presence of a solvent and small amounts of a basic compound, fewer by-products are formed by using platinum and nickel and/or cobalt on an active charcoal support.
摘要翻译：在通过相应的硝基化合物与氢气在压力下，在升高的温度下和在溶剂和少量碱性化合物的存在下反应制备氯化芳香胺时，通过使用铂和镍形成更少的副产物和/或钴活性炭支持。

37. 发明授权

US5105012A Catalytic reduction of dinitrobenzenes using a noble metal catalyst and iron or iron salts 失效
标题翻译：使用贵金属催化剂和铁或铁盐催化还原二硝基苯
公开(公告)号：US5105012A
公开(公告)日：1992-04-14
申请号：US595901
申请日：1990-10-11
申请人： George Theodoridis
发明人： George Theodoridis
IPC分类号： C07C209/36
CPC分类号： C07C209/365
摘要： There is provided an improved process for the reduction of optionally substituted dinitrobenzenes to the corresponding nitroanilines with high yields which comprises contacting the dinitrobenzene with hydrogen in an acidic medium in the presence of a catalytic amount of a combination of a noble metal hydrogenation catalyst, and iron or an iron salt. Isomer specific reductions may be achieved with those compounds containing suitable directing substituents.The 2-halo-5-nitroanilines which may be produced in this process may be converted via a multi-step synthesis to useful 1-aryl-4-substituted 1,4-dihydro-5H-tetrazol-5-one herbicides.
摘要翻译：提供了一种用于以高收率将任选取代的二硝基苯还原成相应的硝基苯胺的改进方法，其包括在催化量的贵金属氢化催化剂和铁的组合存在下，在酸性介质中使二硝基苯与氢接触或铁盐。可以通过含有合适导向取代基的那些化合物来实现异构体特异性降低。可以在该方法中生产的2-卤代-5-硝基苯胺可以通过多步合成转化为有用的1-芳基-4-取代的1,4-二氢-5H-四唑-5-酮除草剂。

38. 发明授权

US5105011A Process for the hydrogenation of halogenonitro-aromatic compounds in the presence of an iodide 失效
标题翻译：氢氧化物芳香化合物在碘化氢存在下的加氢过程
公开(公告)号：US5105011A
公开(公告)日：1992-04-14
申请号：US554514
申请日：1990-07-20
申请人： Georges Cordier , Jean-Michel Grosselin
发明人： Georges Cordier , Jean-Michel Grosselin
IPC分类号： C01B7/13 , B01J25/02 , B01J27/128 , C07B43/04 , C07B61/00 , C07C209/36 , C07C211/45 , C07C211/52
CPC分类号： C07C209/36 , C07C209/365
摘要： A process for the preparation of amino halogeno aromatic compounds, according to which a halogenonitro-aromatic compound is brought into the presence of a nickel-, cobalt- or iron-based catalyst, preferably nickel-based, and, more preferably, Raney nickel, in the presence of an effective amount of iodide, at a temperature and hydrogen pressure sufficient to form said halogenoamino-aromatic compound.
摘要翻译：一种制备氨基卤代芳族化合物的方法，根据该方法，将卤代硝基芳族化合物置于镍，钴或铁基催化剂的存在下，优选为镍基，更优选为阮内镍，在有效量的碘化物的存在下，在足以形成所述卤代氨基 - 芳族化合物的温度和氢气压力下进行。

39. 发明授权

US5041674A Process and intermediates for the preparation of 2,6-difluoroaniline 失效
标题翻译：制备2,6-二氟苯胺的方法和中间体
公开(公告)号：US5041674A
公开(公告)日：1991-08-20
申请号：US537975
申请日：1990-06-14
申请人： R. Garth Pews , James A. Gall
发明人： R. Garth Pews , James A. Gall
IPC分类号： C07C209/36 , C07C211/52
CPC分类号： C07C211/52 , C07C209/365
摘要： 1-Chloro-3,5-difluorobenzene is chlorinated to give 4,6-difluoro-1,2,3-trichlorobenzene which in turn is nitrated and reduced to the corresponding novel aniline, 2,6-difluoro-3,4,5-trichloroaniline. Further reduction of this aniline provides 2,6-difluoroaniline with high selectivity.
摘要翻译：氯化1-氯-3,5-二氟苯，得到4,6-二氟-1,2,3-三氯苯，然后将其硝化并还原成相应的新型苯胺，2,6-二氟-3,4,5 三氯苯胺该苯胺的进一步还原提供了高选择性的2,6-二氟苯胺。

40. 发明授权

US4831193A Synthesis of 3-amino-2-methylbenzotrifluoride 失效
标题翻译： 3-氨基-2-甲基三氟甲苯的合成
公开(公告)号：US4831193A
公开(公告)日：1989-05-16
申请号：US64891
申请日：1987-06-19
申请人： Joseph F. Lamendola , Dhiru Vashi , Robert G. Tyson
发明人： Joseph F. Lamendola , Dhiru Vashi , Robert G. Tyson
IPC分类号： C07C209/36
CPC分类号： C07C209/365
摘要： This invention relates to a novel process for preparing 3-amino-2-methylbenzotrifluoride from benzotrifluoride. The process comprises nitrating benzotrifluoride to form 3-nitrobenzotrifluoride, reacting this compound with trimethyl sulphoxonium halide to form 3-nitro-2-methylbenzotrifluoride and reducing the nitro group to an amino group.

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