公开(公告)号：DE10117207C1

公开(公告)日：2002-11-14

申请号：DE10117207

申请日：2001-04-06

Applicant: BAYER AG

Inventor： GOTTA MATTHIAS ,  DEMUTH RALF ,  ZIRNGIEBL EBERHARD ,  WEBER HANS-MARTIN ,  RONGE GEORG

IPC: C07C201/08 ,  C07B61/00 ,  C07C201/06 ,  C07C205/06

Abstract: Continuous, isothermal production of mononitrotoluene by reaction of toluene with HNO3, H2SO4 and H3PO4 is such that the latter two acids are introduced as a mixture of H2SO4 (45-80 wt.%), H3PO4 (9-45 wt.%) and water (5-15 wt.%), i.e. as a single component.

公开(公告)号：DE69033814T2

公开(公告)日：2002-05-29

申请号：DE69033814

申请日：1990-01-30

Applicant: TAKEDA CHEMICAL INDUSTRIES LTD

Inventor： AOKI ISAO ,  TABUCHI TAKANORI ,  MINAMIDA ISAO

IPC: A01N33/18 ,  A01N35/08 ,  A01N37/52 ,  A01N43/40 ,  A01N43/42 ,  A01N43/60 ,  A01N43/78 ,  C07C201/06 ,  C07C201/14 ,  C07C205/08 ,  C07C205/09 ,  C07C209/08 ,  C07C211/27 ,  C07C211/29 ,  C07D213/38 ,  C07D213/61 ,  C07D213/64 ,  C07D213/70 ,  C07D213/74 ,  C07D215/08 ,  C07D215/12 ,  C07D239/26 ,  C07D277/20 ,  C07D277/28 ,  C07D277/32 ,  C07D277/42 ,  C07D213/36 ,  C07D241/12

Abstract: Methods for the production of 1,1,1,-trihalogeno-2-nitroethanes from 1,1-dihalogenoethylene by using nitric acid or its salt and hydrogen chloride or hydrogen bromide or its salt, and for the production of alpha-unsaturated amines from the 1,1,1-trihalogeno-2-nitroethanes which are useful as insecticides.

公开(公告)号：CA2325335A1

公开(公告)日：2001-05-12

申请号：CA2325335

申请日：2000-11-09

Applicant: BAYER AG

Inventor： GIERA HENRY ,  HUGGER UWE ,  MEIERS MICHAELA

IPC: C07C201/06 ,  C07B61/00 ,  C07C201/00 ,  C07C205/06 ,  C07C207/02 ,  C07C207/04 ,  C07C207/00

Abstract: The invention relates to a process for the preparation of nitrosobenzene fro m aromatic amines by oxidation with hydrogen peroxide in the presence of a catalyst based on compounds of tungsten and/or molybdenum without the addition of the organ ic solvents conventionally used.

公开(公告)号：SE9804252L

公开(公告)日：2000-06-09

申请号：SE9804252

申请日：1998-12-08

Applicant: FOERSVARETS FORSKNINGSANSTALT

Inventor： LATYPOV NIKOLAI ,  WELLMAR ULF ,  LANGLET ABRAHAM

IPC: C07C201/16 ,  C07C205/02 ,  C07D239/62 ,  C07C201/06

Abstract: A method of preparing dinitromethane salts usable as intermediate products add starting material for production of explosives and propellants. Substituted 1,2-diazoles, 1,2,4 -triazoles or 1,3-diazines, such as barbituric acid, are nitrated to obtain a gem-dinitro group on a carbon atom in the heterocyclic ring. The product is hydrolysed to split off dinitromethane which is neutralised with a neutralising agent to obtain a corresponding salt of dinitromethane.

公开(公告)号：HRP940856A2

公开(公告)日：1996-06-30

申请号：HRP940856

申请日：1994-10-28

Applicant: STAUFFER CHEMICAL CO

Inventor： CARTER CHARLES GARVIE

IPC: A01N35/06 ,  A01N41/06 ,  A01N41/10 ,  C07C201/06 ,  C07C205/45 ,  C07C205/49 ,  C07C255/50 ,  C07C317/24 ,  C07C317/44 ,  C07C79/36 ,  C07C76/02 ,  C07C121/76

公开(公告)号：RU2061671C1

公开(公告)日：1996-06-10

申请号：RU93005199

申请日：1991-07-10

Applicant: OLIN CORP

Inventor： ALLEN B KVEKENBUSH

IPC: C07C20060101 ,  C07C201/06 ,  C07C201/08 ,  C07C201/16 ,  C07C205/06

Abstract: Described herein is a process for separating an acid impurity from a solution containing acid and a nitro substituted aromatic compound by contacting the solution with at least one molten nitrate salt.

公开(公告)号：HU209439B

公开(公告)日：1994-06-28

申请号：HU60990

申请日：1990-01-31

Applicant: TAKEDA CHEMICAL INDUSTRIES LTD

Inventor： MINAMIDA ISAO ,  TABUCHI TAKANORI ,  AOKI ISAO

IPC: A01N33/18 ,  A01N35/08 ,  A01N37/52 ,  A01N43/40 ,  A01N43/42 ,  A01N43/60 ,  A01N43/78 ,  C07C201/06 ,  C07C201/14 ,  C07C205/08 ,  C07C205/09 ,  C07C209/08 ,  C07C211/27 ,  C07C211/29 ,  C07D213/38 ,  C07D213/61 ,  C07D213/64 ,  C07D213/70 ,  C07D213/74 ,  C07D215/08 ,  C07D215/12 ,  C07D239/26 ,  C07D277/20 ,  C07D277/28 ,  C07D277/32 ,  C07D277/42

Abstract: Methods for the production of 1,1,1,-trihalogeno-2-nitroethanes from 1,1-dihalogenoethylene by using nitric acid or its salt and hydrogen chloride or hydrogen bromide or its salt, and for the production of alpha-unsaturated amines from the 1,1,1-trihalogeno-2-nitroethanes which are useful as insecticides.

公开(公告)号：NO175145B

公开(公告)日：1994-05-30

申请号：NO914749

申请日：1991-12-03

Applicant: BOFORS EXPLOSIVES AB ,  NOBEL KEMI AB ,  SWEDISH EXPLOSIVES AB

Inventor： BELLAMY ANTHONY

IPC: C06B21/00 ,  C06B25/04 ,  C07C20060101 ,  C07C201/06 ,  C07C201/16 ,  C07C205/06

公开(公告)号：IE59268B1

公开(公告)日：1994-01-26

申请号：IE169886

申请日：1986-06-25

Applicant: DOW CHEMICAL CO

IPC: C07C67/00 ,  C07C201/00 ,  C07C205/58 ,  C07C205/59 ,  C07C227/00 ,  C07C227/04 ,  C07C229/64 ,  C07C201/06 ,  C07C205/57 ,  C07C229/60 ,  C08G73/22

Abstract: 3-Amino-4-hydroxybenzoic acids are prepared by: a) contacting a p-halobenzoic acid with nitric acid in an acidic reaction medium under conditions such that a 3-nitro-4-halobenzoic acid is prepared; (b) contacting the 3-nitro-4-halobenzoic acid with an alkali metal hydroxide in a reaction medium under conditions such that the halo moiety is replaced with a hydroxide moiety, to prepare a 3-nitro-4-hydroxybenzoic acid, or salt thereof; and (c) reducing the 3-nitro-4-hydroxybenzoic acid in a reaction medium under conditions such that a 4-hydroxy-3-aminobenzoic acid is prepared.

公开(公告)号：AU8395191A

公开(公告)日：1992-02-18

申请号：AU8395191

申请日：1991-07-10

Applicant: OLIN CORP

Inventor： QUAKENBUSH ALLEN B

IPC: C07C20060101 ,  C07C201/06 ,  C07C201/08 ,  C07C201/16 ,  C07C205/06 ,  C07C205/11

Abstract: Described herein is a process for separating an acid impurity from a solution containing acid and a nitro substituted aromatic compound by contacting the solution with at least one molten nitrate salt.