公开(公告)号：US4727182A

公开(公告)日：1988-02-23

申请号：US748424

申请日：1985-06-25

Applicant: Serge Ratton

Inventor： Serge Ratton

IPC: C07C69/035 ,  C07C20060101 ,  C07C67/287 ,  C07C69/017 ,  C07C69/16 ,  C07C69/28 ,  C07C69/63 ,  C07C69/95 ,  C11C3/00

CPC classification number: C07C67/03 ,  C07C67/287

Abstract: Monohalohydroquinone monocarboxylates are selectively prepared by halogenating a hydroquinone monocarboxylate, or admixture thereof with a hydroquinine dicarboxylate and a minor amount of hydroquinone, with a chlorine, bromine or sulfuryl halide halogenating agent; such monocarboxylates are facilely converted into the corresponding dicarboxylates by acylation. Both the monocarboxylates, e.g., monochlorohydroquinone monoacetate, and dicarboxylates, e.g., monochlorohydroquinone diacetate, are useful organic intermediates.

Abstract translation: 通过用氯，溴或磺酰卤化物卤化氢醌单羧酸盐或其与氢醌二羧酸盐和少量氢醌的混合物来选择性地制备单卤代氢醌单羧酸盐; 这种单羧酸酯通过酰化容易地转化成相应的二羧酸盐。 单羧酸盐，例如单氯代氢醌单乙酸盐和二羧酸盐，例如单氯氢醌二乙酸盐，是有用的有机中间体。

公开(公告)号：US4723043A

公开(公告)日：1988-02-02

申请号：US882515

申请日：1986-07-07

Applicant: Serge Ratton

Inventor： Serge Ratton

IPC: C07C205/22 ,  C07C67/00 ,  C07C201/00 ,  C07C201/08 ,  C07C205/26 ,  C07C205/37 ,  C07C79/32

CPC classification number: C07C201/08 ,  C07C201/16

Abstract: Substituted phenols are nitrated by contacting same with a 10 to 70% by weight concentrated aqueous solution of nitric acid. The subject nitration process is well adopted for the preparation, e.g., of 2,6-dichloro-4-nitrophenol, a valuable intermediate in the production of various agrochemicals/pharmaceuticals.

Abstract translation: 通过使其与10至70重量％浓度的硝酸水溶液接触来将取代的酚硝化。 目标硝化方法被广泛用于制备例如2,6-二氯-4-硝基苯酚（生产各种农用化学品/药物中的有价值的中间体）。

公开(公告)号：US4508922A

公开(公告)日：1985-04-02

申请号：US508716

申请日：1983-06-28

Applicant: Serge Ratton

Inventor： Serge Ratton

IPC: C07B61/00 ,  B01J23/00 ,  B01J23/72 ,  C07C20060101 ,  C07C67/00 ,  C07C209/00 ,  C07C209/10 ,  C07C211/46 ,  C07C211/47 ,  C07C211/52 ,  C07C211/56 ,  C07C213/04 ,  C07C217/84 ,  C07C85/04

CPC classification number: C07C209/10

Abstract: Process for the manufacture of an optionally halogenated aniline of the formula: ##STR1## in which Y=halogen, R=H, alkyl (C.sub.1 -C.sub.4) or alkoxy (C.sub.1 -C.sub.4) and n=0 to 5.Halogenobenzenes of the formula: ##STR2## in which Y, R and n are as above and X=halogen, are subjected to ammonolysis with aqueous ammonia solution, in the presence of copper and 8-hydroxyquinoline.The process can be used, in particular, for the preparation of 3,5-dichloroaniline.

Abstract translation: 制备下式的任选卤化的苯胺的方法：其中Y =卤素，R = H，烷基（C 1 -C 4）或烷氧基（C 1 -C 4）和n = 0至5的式I化合物的卤代苯：式 ：其中Y，R和n如上所述，X =卤素，在氨水溶液中，在氨水和8-羟基喹啉的存在下进行氨解。 该方法特别可用于制备3,5-二氯苯胺。

公开(公告)号：US4275003A

公开(公告)日：1981-06-23

申请号：US876504

申请日：1978-02-09

Applicant: Serge Ratton ,  Bernard Botannet

Inventor： Serge Ratton ,  Bernard Botannet

IPC: C07C245/08 ,  C07C67/00 ,  C07C241/00 ,  C07C245/20 ,  C09B37/00 ,  C07C107/06 ,  C07C107/08 ,  C09B29/085 ,  C09B29/095

CPC classification number: C09B37/00

Abstract: Aromatic azoamines are prepared by diazotizing an aromatic amine, coupling the diazonium salt with the aromatic amine, and rearranging the resulting aromatic diazoamine. The several reactions are effected in single stage by introducing vaporous nitrogen oxides to a reaction medium essentially consisting of the aromatic amine [.alpha.], a salt of the aromatic amine [.beta.], and water [.gamma.], with the percentage weight relationship existing among the components .alpha., .beta. and .gamma. being such that:10

Abstract translation: 芳族偶氮胺通过将芳族胺重氮化，将重氮盐与芳族胺偶联并重排所得的芳族重氮胺来​​制备。 通过将气态氮氧化物引入到基本上由芳香族胺α，芳香族胺β的盐和水γ的反应介质中，在单个阶段中实现了几个反应，其中百分比重量关系存在于 组分α，β和γ使得：10 <70 13 <5 5