BR9403456A - Processo para preparação de ácido 4,4 -dinitroestilbeno-2,2 -dissulfônico - Google Patents
Processo para preparação de ácido 4,4 -dinitroestilbeno-2,2 -dissulfônicoInfo
- Publication number
- BR9403456A BR9403456A BR9403456A BR9403456A BR9403456A BR 9403456 A BR9403456 A BR 9403456A BR 9403456 A BR9403456 A BR 9403456A BR 9403456 A BR9403456 A BR 9403456A BR 9403456 A BR9403456 A BR 9403456A
- Authority
- BR
- Brazil
- Prior art keywords
- dinitrostilbene
- preparation
- disulfonic acid
- acid
- nitrotoluene
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/22—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof from sulfonic acids, by reactions not involving the formation of sulfo or halosulfonyl groups; from sulfonic halides by reactions not involving the formation of halosulfonyl groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4330377A DE4330377A1 (de) | 1993-09-08 | 1993-09-08 | Verfahren zur Herstellung von 4,4'-Dinitrostilben-2,2'-disulfonsäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9403456A true BR9403456A (pt) | 1995-05-16 |
Family
ID=6497144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9403456A BR9403456A (pt) | 1993-09-08 | 1994-09-06 | Processo para preparação de ácido 4,4 -dinitroestilbeno-2,2 -dissulfônico |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US5808141A (pt) |
| EP (1) | EP0641773B1 (pt) |
| JP (1) | JPH0782238A (pt) |
| KR (1) | KR950008477A (pt) |
| CN (1) | CN1052475C (pt) |
| AT (1) | ATE186297T1 (pt) |
| AU (1) | AU676351B2 (pt) |
| BR (1) | BR9403456A (pt) |
| CZ (1) | CZ288479B6 (pt) |
| DE (2) | DE4330377A1 (pt) |
| ES (1) | ES2139694T3 (pt) |
| PL (1) | PL175551B1 (pt) |
| TW (1) | TW290533B (pt) |
| ZA (1) | ZA946870B (pt) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4418305A1 (de) * | 1994-05-26 | 1995-11-30 | Bayer Ag | Verfahren zur Herstellung von 4.4'-Dinitrostilben-2.2'-disulfonsäure und ihren Salzen |
| CN1313444C (zh) * | 2005-12-20 | 2007-05-02 | 天津大学 | 铁粉还原dns钠盐制备dsd酸的半连续化方法 |
| US20100249431A1 (en) * | 2007-10-24 | 2010-09-30 | National University Corporation Nagoya University | Process for manufacturing disulfonic acid compound, asymmetric mannich catalst, process for manufacturing beta-aminocarbonyl derivative, and novel disulfonate |
| CN102351748B (zh) * | 2011-08-22 | 2013-08-21 | 山西阳煤丰喜肥业(集团)有限责任公司 | 一种dsd酸生产过程中的dns钠盐的制备方法 |
| TWI567051B (zh) * | 2015-11-06 | 2017-01-21 | 財團法人工業技術研究院 | 二苯乙烯化合物的製備方法 |
| CN108017564A (zh) * | 2017-12-22 | 2018-05-11 | 江苏淮河化工有限公司 | 一种溶剂法制备dns酸 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE792103A (fr) * | 1971-12-01 | 1973-05-30 | Clayton Aniline Co Ltd | Nouveau procede de fabrication de l'acide dinitrostilbene disulfonique a l'echelle industrielle |
| DE3063958D1 (en) * | 1979-06-08 | 1983-08-04 | Ciba Geigy Ag | Process for preparing 4,4'-dinitrostilbene-2,2'-disulfonic acid and its salts and its use |
| JPS5738764A (en) * | 1980-08-19 | 1982-03-03 | Sumitomo Chem Co Ltd | Preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid |
| JPS59167560A (ja) * | 1983-03-14 | 1984-09-21 | Nippon Kayaku Co Ltd | ４，４′−ジニトロスチルベン−２，２′−ジスルホン酸又はその塩の製造法 |
| DE3860061D1 (de) * | 1987-08-12 | 1990-05-03 | Ciba Geigy Ag | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeure. |
| US4952725A (en) * | 1988-03-08 | 1990-08-28 | Ciba-Geigy Corporation | Process for the preparation of 4,4'dinitrostilbene-2,2'-disulfonic acid and its salts |
-
1993
- 1993-09-08 DE DE4330377A patent/DE4330377A1/de not_active Withdrawn
-
1994
- 1994-08-26 EP EP94113365A patent/EP0641773B1/de not_active Expired - Lifetime
- 1994-08-26 DE DE59408874T patent/DE59408874D1/de not_active Expired - Fee Related
- 1994-08-26 AT AT94113365T patent/ATE186297T1/de not_active IP Right Cessation
- 1994-08-26 ES ES94113365T patent/ES2139694T3/es not_active Expired - Lifetime
- 1994-08-30 AU AU71570/94A patent/AU676351B2/en not_active Ceased
- 1994-09-01 TW TW083108037A patent/TW290533B/zh active
- 1994-09-02 JP JP6232515A patent/JPH0782238A/ja active Pending
- 1994-09-06 PL PL94304947A patent/PL175551B1/pl unknown
- 1994-09-06 BR BR9403456A patent/BR9403456A/pt not_active IP Right Cessation
- 1994-09-07 CZ CZ19942169A patent/CZ288479B6/cs not_active IP Right Cessation
- 1994-09-07 ZA ZA946870A patent/ZA946870B/xx unknown
- 1994-09-08 KR KR1019940022567A patent/KR950008477A/ko not_active Application Discontinuation
- 1994-09-08 CN CN94116202A patent/CN1052475C/zh not_active Expired - Fee Related
-
1997
- 1997-07-22 US US08/897,403 patent/US5808141A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0641773A1 (de) | 1995-03-08 |
| DE59408874D1 (de) | 1999-12-09 |
| KR950008477A (ko) | 1995-04-17 |
| ZA946870B (en) | 1995-04-24 |
| US5808141A (en) | 1998-09-15 |
| AU676351B2 (en) | 1997-03-06 |
| PL304947A1 (en) | 1995-03-20 |
| PL175551B1 (pl) | 1999-01-29 |
| ES2139694T3 (es) | 2000-02-16 |
| CN1052475C (zh) | 2000-05-17 |
| DE4330377A1 (de) | 1995-03-09 |
| ATE186297T1 (de) | 1999-11-15 |
| CZ216994A3 (en) | 1995-03-15 |
| JPH0782238A (ja) | 1995-03-28 |
| EP0641773B1 (de) | 1999-11-03 |
| TW290533B (pt) | 1996-11-11 |
| CN1105966A (zh) | 1995-08-02 |
| CZ288479B6 (en) | 2001-06-13 |
| AU7157094A (en) | 1995-03-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
| FF | Decision: intention to grant | ||
| FG9A | Patent or certificate of addition granted | ||
| B24C | Patent annual fee: request for for restoration |
Free format text: REFERENTE 9A., 10A., 11A., 12A., 13A., 14A., 15A., E 16A. ANUIDADES. |
|
| B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE AO NAO CUMPRIMENTO DO DESPACHO 24.3 NA RPI 2061 DE 06/07/2010 E COMPROVAR RECOLHIMENTO DA17A, 18A E 19A ANUIDADES. |