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1. 发明授权

US4658034A Process for the preparation of 2,6-dichlorobenzoxazole 失效
标题翻译： 2,6-二氯苯并恶唑的制备方法
公开(公告)号：US4658034A
公开(公告)日：1987-04-14
申请号：US703708
申请日：1985-02-21
申请人： Otto Arndt , Theodor Papenfuhs
发明人： Otto Arndt , Theodor Papenfuhs
IPC分类号： C07D263/58 , C07D263/54
CPC分类号： C07D263/58
摘要： A process for the preparation of 2,6-dichlorobenzoxazole, which comprises reacting 6-chlorobenzoxazolone in the presence of chlorine, phosphorus trichloride and phosphoryl chloride, or in mixtures of phosphorus pentachloride and phosphoryl chloride, at temperatures of 150.degree. to 170.degree. C., under pressure, the weight ratio of chlorine and phosphorus trichloride to phosphoryl chloride or of phosphorus pentachloride to phosphoryl chloride being 0.15:1 to 0.60:1.
摘要翻译：一种制备2,6-二氯苯并恶唑的方法，其包括在氯，三氯化磷和磷酰氯的存在下，或在五氯化磷和磷酰氯的混合物中，在150-170℃下使6-氯苯并恶唑酮反应。在压力下，氯三氯化磷与磷酰氯或五氯化磷与磷酰氯的重量比为0.15：1至0.60：1。

2. 发明授权

US4254054A Process for the manufacture of 4-nitro-4'-amino-diphenylamine-2-sulfonic acid and 2-nitro-4'-amino-diphenylamine-4-sulfonic acid 失效
标题翻译：制备4-硝基-4'-氨基 - 二苯胺-2-磺酸和2-硝基-4'-氨基 - 二苯胺-4-磺酸的方法
公开(公告)号：US4254054A
公开(公告)日：1981-03-03
申请号：US83852
申请日：1979-10-11
申请人： Otto Arndt , Wolfgang Tronich
发明人： Otto Arndt , Wolfgang Tronich
IPC分类号： C07C67/00 , C07C301/00 , C07C303/22 , C07C303/32 , C07C309/46 , C07C143/56
CPC分类号： C07C309/46
摘要： 4-Nitro-4'-amino-diphenylamine-2-sulfonic acid, 2-nitro-4'-amino-diphenylamine-4-sulfonic acid and their sodium salts are obtained in good yield and high purity by condensing 6- or 4-chloro-3-nitro-benzene sulfonic acid and 1,4-phenylene diamine in a saturated aqueous sodium chloride solution. The products and their desulfonation derivatives are dye precursors.
摘要翻译： 4-硝基-4'-氨基 - 二苯胺-2-磺酸，2-硝基-4'-氨基 - 二苯胺-4-磺酸及其钠盐以高产率和高纯度得到，得到6-或4- 氯-3-硝基苯磺酸和1,4-亚苯基二胺在饱和氯化钠水溶液中的溶液。产品及其脱磺基衍生物是染料前体。

3. 发明授权

US1079866A Railway-splice with fish-plates. 失效
标题翻译：铁路与鱼片。
公开(公告)号：US1079866A
公开(公告)日：1913-11-25
申请号：US1912686855
申请日：1912-03-28
申请人： KUNERT OTTO ARNDT , WEIDENHEIM THEODOR FREIHERR KORB VON
发明人： KUNERT OTTO ARNDT , WEIDENHEIM THEODOR FREIHERR KORB VON
CPC分类号： E01B11/10

4. 发明授权

US5525744A Process for the preparation of tetrachloro-1,4-benzoquinone 失效
标题翻译：制备四氯-1,4-苯醌的方法
公开(公告)号：US5525744A
公开(公告)日：1996-06-11
申请号：US327033
申请日：1994-10-21
申请人： Otto Arndt , Hans Schubert
发明人： Otto Arndt , Hans Schubert
IPC分类号： B01J27/128 , C07B61/00 , C07C46/00 , C07C46/06 , C07C46/10 , C07C50/24 , C10M131/10
CPC分类号： C10M131/10 , C07C46/06 , C07C46/10 , C10M2211/042 , C10M2211/06
摘要： A process for the preparation of tetrachloro-1,4-benzoquinone of high purity by the action of chlorine and concentrated hydrochloric acid on hydroquinone, by introducing a part of the hydroquinone to be employed into an initially introduced 4- to 6-fold molar amount--based on the total amount of hydroquinone--of 20 to 37 % aqueous hydrochloric acid containing catalytic amounts of iron(III) ions and an anionic dispersant, introducing 1.5 to 2.0 times the molar amount--based on total hydroquinone--of chlorine as a gas into this solution at a temperature of 20.degree. to 90.degree. C., then adding the residual amount of hydroquinone as a solid or in dissolved form, introducing 1.5 to 2.0 times the molar amount of chlorine as a gas, keeping the concentration of the hydrochloric acid here at 23-25% by addition of water and finally raising the temperature to 100.degree. to 107.degree. C. with further introduction of chlorine as a gas (1.7 to 2.5 times the molar amount) and dilution with water to a hydrochloric acid concentration of 20 to 22%.
摘要翻译：通过将氯和浓盐酸作用于氢醌的作用制备高纯度四氯-1,4-苯醌的方法，通过将待使用的一部分氢醌引入最初引入的4至6倍摩尔量 - 基于氢醌的总量 - 含有催化量的铁（III）离子和阴离子分散剂的20至37％盐酸水溶液，引入基于总氢醌的1.5至2.0倍摩尔量的氯作为气体在20〜90℃的温度下加入到该溶液中，然后加入残留量的氢醌作为固体或溶解形式，引入作为气体的氯的摩尔量的1.5-2.0倍，保持浓度的盐酸酸加入水中，最后升温至100〜107℃，再加入氯气作为气体（1.7〜2.5倍摩尔量），用水稀释至盐酸酸浓度为20〜22％。

5. 发明授权

US4824962A Process for the preparation of naphthostyril 失效
标题翻译：制备萘普生的方法
公开(公告)号：US4824962A
公开(公告)日：1989-04-25
申请号：US170065
申请日：1988-03-14
申请人： Otto Arndt , Theodor Papenfuhs
发明人： Otto Arndt , Theodor Papenfuhs
IPC分类号： C07D209/92
CPC分类号： C07D209/92
摘要： Process for the preparation of naphthostyril by dissolving 1,8-naphthalimide in an aqueous solution of lithium hydroxide and potassium hydroxide while heating at 40.degree. C. to 80.degree. C., cooling the solution obtained to 14.degree. C. and seeding it at said temperature with a maximum of 1 mol-% of sodium 1,8-naphthalimide per 1 mol of 1,8-naphthalimide used, then adding chlorine bleaching liquor at 10.degree. C. to 20.degree. C., reductively removing excess active chlorine after the reaction has taken place, adjusting the alkaline aqueous solution produced of the alkali-metal salt of the 1-aminonaphthal-ene-8-carboxylic acid formed to a pH of 2.0 by adding acid and isolating the naphthostyril which precipitates in this process.
摘要翻译：通过在40℃至80℃下加热将1,8-萘二甲酰亚胺溶解在氢氧化锂和氢氧化钾的水溶液中而制备萘未斯特林的方法，将所得溶液冷却至14℃，并将其在所述温度，每1摩尔1,8-萘二甲酰亚胺使用1,8-萘二甲酰亚胺钠最多1摩尔％，然后在10℃至20℃下加入氯漂白液，然后还原除去过量的活性氯发生反应，通过加入酸调节形成pH为2.0的1-氨基萘-8-羧酸的碱金属盐产生的碱性水溶液，并分离出在该过程中析出的萘并三唑。

6. 发明授权

US4605767A Process for the preparation of 2,6-dichloro-4-nitroaniline 失效
标题翻译： 2,6-二氯-4-硝基苯胺的制备方法
公开(公告)号：US4605767A
公开(公告)日：1986-08-12
申请号：US734972
申请日：1985-05-16
申请人： Otto Arndt , Theodor Papenfuhs
发明人： Otto Arndt , Theodor Papenfuhs
IPC分类号： C07C209/74 , C07C67/00 , C07C209/00 , C07C211/52 , C07C85/24 , C07C87/60
CPC分类号： C07C209/74
摘要： Process for the preparation of 2,6-dichloro-4-nitroaniline by chlorination of 4-nitroaniline with chlorine bleaching liquor in water using acids, which comprises chlorinating 1 mole of 4-nitroaniline in 3-6 moles of hydrochloric acid (HCl) or nitric acid (HNO.sub.3) in the form of a dilute, aqueous acid in the presence of a dispersing agent which is stable under the reaction conditions, the chlorination initially being carried out at 5.degree. to 10.degree. C. and then at 15.degree.-20.degree. C. and, finally, after 90-95% of the 2-chloro-4-nitroaniline intermediately formed has been converted into 2,6-dichloro-4-nitroaniline, the temperature of the aqueous suspension being increased from 15.degree.-20.degree. C. to 70.degree. C., without further addition of chlorine bleaching liquor, and then by post-chlorinating, by renewed addition of chlorine bleaching liquor, at temperatures between 20.degree. and 70.degree. C., bringing the pH of the aqueous suspension to 9.0 and filtering off the 2,6-dichloro-4-nitroaniline formed and washing it with dilute mineral acid.
摘要翻译：通过使用酸在氯水中用氯漂白液氯化4-硝基苯胺的方法制备2,6-二氯-4-硝基苯胺的方法，该方法包括将1-6摩尔盐酸（HCl）中的1摩尔4-硝基苯胺氯化，或硝酸（HNO 3）为稀酸水溶液，在分散剂存在下，在反应条件下稳定，氯化最初在5〜10℃进行，然后在15〜-20℃ ℃，最后，90-95％的中间形成的2-氯-4-硝基苯胺已经转化为2,6-二氯-4-硝基苯胺，水悬浮液的温度从15°-20 在不进一步加入氯漂白液的情况下，通过后续氯化，通过在20℃至70℃的温度下再次加入氯漂白液，使水悬浮液的pH值达到70℃ 至9.0，滤出2,6-二氯-4-硝基苯胺 d用稀释的无机酸洗涤。

7. 发明授权

US5616779A Process for the preparation of 2,5-di-phenylamino-terephthalic acid and its dialkyl esters 失效
标题翻译：制备2,5-二苯基氨基 - 对苯二甲酸及其二烷基酯的方法
公开(公告)号：US5616779A
公开(公告)日：1997-04-01
申请号：US397733
申请日：1995-03-02
申请人： Otto Arndt
发明人： Otto Arndt
IPC分类号： C07C229/62 , B01J31/04 , C07B61/00 , C07C227/06 , C07C227/08 , C07C227/16 , C07C227/18 , C07C101/38 , C07C101/68 , C07C103/76
CPC分类号： C07C227/08 , C07C227/16
摘要： The present invention relates to a process for the preparation of 2,5-di-phenylamino-terephthalic acid and its dialkyl esters of the formula ##STR1## in which R is a hydrogen atom or a methyl or an ethyl group, by reaction of a succinic acid dialkyl ester with a sodium alcoholate in xylene, treatment of the resulting 2,5-dihydroxy-cyclohexadiene-1,4-di-carboxylic acid dialkyl ester with acid and aniline, dehydrogenation of the resulting 2,5-di-phenylamino-dihydro-(3,6)-terephthalic acid dialkyl ester by means of oxygen, if appropriate hydrolysis of the 2,5-di-phenylamino-terephthalic acid dialkyl ester formed and liberation of the 2,5-di-phenylamino-terephthalic acid from the di-sodium salt formed. The 2,5-di-phenylamino-dihydro-(3,6)-terephthalic acid dialkyl ester is reacted with pure oxygen in the presence of an alkali metal ion and/or an alkaline earth metal ion. This significantly decreases undesirable impurities.
摘要翻译：本发明涉及通过琥珀酸二烷基酯与二甲苯醇钠反应制备2,5-二苯基氨基 - 对苯二甲酸及其通式为乙基的二烷基酯的方法，处理的所得的2,5-二羟基 - 环己二烯-1,4-二羧酸二烷基酯与酸和苯胺，所得的2,5-二苯基氨基 - 二氢 - （3,6） - 对苯二甲酸二烷基酯如果合适的水解形成的2,5-二苯基氨基 - 对苯二甲酸二烷基酯和形成的二钠盐释放2,5-二苯基氨基 - 对苯二甲酸，通过氧气。 2,5-二苯基氨基 - 二氢 - （3,6） - 对苯二甲酸二烷基酯在碱金属离子和/或碱土金属离子存在下与纯氧反应。这显着降低了不需要的杂质。

8. 发明授权

US5599992A Process for the preparation of 2-fluorophenylhydrazine 失效
标题翻译： 2-氟苯肼的制备方法
公开(公告)号：US5599992A
公开(公告)日：1997-02-04
申请号：US589859
申请日：1996-01-22
申请人： Otto Arndt
发明人： Otto Arndt
IPC分类号： C07C241/02 , C07C243/22 , C07C303/34 , C07C307/02
CPC分类号： C07C303/34 , C07C241/02
摘要： The invention relates to a process for the preparation of 2-fluorophenylhydrazine or 2-fluorophenylhydrazine hydrochloride, which comprises diazotizing 2-fluoroaniline, reducing the resulting diazonium salt with alkaline bisulfite solution to give 2-fluorophenylhydrazine .alpha..beta.-disulfonate, hydrolyzing the latter with hydrochloric acid to give 2-fluorophenylhydrazine hydrochloride, adding alkali metal solution to neutralize the mixture, subsequently cooling the mixture, removing the 2-fluorophenylhydrazine precipitate by filtration and, if appropriate, reacting the latter with hydrochloric acid to give 2-fluorophenylhydrazine hydrochloride.
摘要翻译：本发明涉及制备2-氟苯肼或2-氟苯肼盐酸盐的方法，该方法包括重氮化2-氟苯胺，用碱式亚硫酸氢盐溶液还原得到的重氮盐，得到2-氟苯基肼α-β-二磺酸盐，用盐酸水解后者酸，得到2-氟苯肼盐酸盐，加入碱金属溶液中和混合物，随后冷却混合物，通过过滤除去2-氟苯肼沉淀，并且如果合适，使其与盐酸反应，得到2-氟苯肼盐酸盐。

9. 发明授权

US5451699A Process for the preparation of crystalline, salt-free, chlorine-substituted 3-nitrobenzenesulfonic acid hydrates 失效
标题翻译：制备结晶，无盐，氯取代的3-硝基苯磺酸水合物的方法
公开(公告)号：US5451699A
公开(公告)日：1995-09-19
申请号：US223635
申请日：1994-04-06
申请人： Otto Arndt
发明人： Otto Arndt
IPC分类号： C07C303/44 , C07C309/30 , C07C309/40 , C07C309/29
CPC分类号： C07C303/44
摘要： The present invention relates to a process for the preparation of crystalline, salt-free, chlorine-substituted 3-nitrobenzenesulfonic acid hydrates from sulfonation mixtures containing chlorine-substituted 3-nitrobenzenesulfonic acid, in which the sulfonation mixture is mixed with from 8 to 25% strength by weight aqueous sulfuric acid at from 40.degree. C. to 100.degree. C., the resulting suspension is cooled to from 5.degree. C. to 20.degree. C., the precipitate is filtered off and dissolved with water at from 30.degree. C. to 100.degree. C., filtration is carried out if desired, the solution is cooled to from 5.degree. to 40.degree. C. and filtered, and the sulfuric acid-containing filtrate is recycled if desired.
摘要翻译：本发明涉及一种由含氯取代的3-硝基苯磺酸的磺化混合物制备结晶无盐氯取代的3-硝基苯磺酸水合物的方法，其中磺化混合物与8-25％重量的硫酸水溶液在40℃至100℃下，将所得悬浮液冷却至5℃至20℃，滤出沉淀物，并在30℃下用水溶解。至100℃，如果需要，进行过滤，将溶液冷却至5℃至40℃并过滤，如果需要，含硫酸的滤液被再循环。

10. 发明授权

US5208365A Process for the preparation of 2,5-di(phenylamino)-terephthalic acid and its dialkyl esters in high purity 失效
标题翻译：制备2,5-DI（苯甲酰基） - 邻苯二甲酸及其高纯度二盐酸的方法
公开(公告)号：US5208365A
公开(公告)日：1993-05-04
申请号：US898201
申请日：1992-06-11
申请人： Hermann Fuchs , Walter Gilb , Otto Arndt
发明人： Hermann Fuchs , Walter Gilb , Otto Arndt
IPC分类号： C07C227/06 , C07C227/08 , C07C229/58
CPC分类号： C07C227/08
摘要： A process for the preparation of 2,5-di(phenylamino)terephthalic acid and its dialkyl esters of formula (I): ##STR1## in which R is a hydrogen atom or a methyl group and R' is a hydrogen atom or a methyl or ethyl group.
摘要翻译：制备2,5-二（苯基氨基）对苯二甲酸及其式（I）的二烷基酯的方法：其中R是氢原子或甲基，R'是氢原子或甲基或乙基。

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