PT89924A - Processo aperfeicoado para a preparacao de 4,4'-dinitroestilbeno-2,2'-acido dissolfonico e seus sais - Google Patents
Processo aperfeicoado para a preparacao de 4,4'-dinitroestilbeno-2,2'-acido dissolfonico e seus saisInfo
- Publication number
- PT89924A PT89924A PT89924A PT8992489A PT89924A PT 89924 A PT89924 A PT 89924A PT 89924 A PT89924 A PT 89924A PT 8992489 A PT8992489 A PT 8992489A PT 89924 A PT89924 A PT 89924A
- Authority
- PT
- Portugal
- Prior art keywords
- dissolfonic
- dinitroestilbene
- salts
- preparation
- acid
- Prior art date
Links
- 239000002253 acid Substances 0.000 title 1
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
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 |
---|---|---|---|
US07/165,648 US4952725A (en) | 1988-03-08 | 1988-03-08 | Process for the preparation of 4,4'dinitrostilbene-2,2'-disulfonic acid and its salts |
Publications (2)
Publication Number | Publication Date |
---|---|
PT89924A true PT89924A (pt) | 1989-11-10 |
PT89924B PT89924B (pt) | 1994-05-31 |
Family
ID=22599837
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PT89924A PT89924B (pt) | 1988-03-08 | 1989-03-07 | Processo aperfeicoado para a preparacao de 4,4'-dinitroestilbeno-2,2'-acido dissolfonico e seus sais |
Country Status (9)
Country | Link |
---|---|
US (1) | US4952725A (pt) |
EP (1) | EP0332137A3 (pt) |
JP (1) | JPH024764A (pt) |
BR (1) | BR8901061A (pt) |
DD (1) | DD279240A5 (pt) |
MX (1) | MX165579B (pt) |
PT (1) | PT89924B (pt) |
SU (1) | SU1736336A3 (pt) |
YU (1) | YU48589A (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4311373A1 (de) * | 1993-04-06 | 1994-10-13 | Oekologische Sanierungs Und En | Verfahren zur Herstellung von 4-Nitrotoluen-2-sulfonsäure |
DE4330377A1 (de) * | 1993-09-08 | 1995-03-09 | Bayer Ag | Verfahren zur Herstellung von 4,4'-Dinitrostilben-2,2'-disulfonsäure |
DE4418305A1 (de) * | 1994-05-26 | 1995-11-30 | Bayer Ag | Verfahren zur Herstellung von 4.4'-Dinitrostilben-2.2'-disulfonsäure und ihren Salzen |
US5780358A (en) * | 1996-04-08 | 1998-07-14 | Chartered Semiconductor Manufacturing Ltd. | Method for chemical-mechanical polish (CMP) planarizing of cooper containing conductor layers |
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 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE3974T1 (de) * | 1979-06-08 | 1983-07-15 | Ciba-Geigy Ag | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeure und deren salzen und deren verwendung. |
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 |
DE3519552A1 (de) * | 1985-05-31 | 1986-12-04 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeuresalzen |
DE3523204A1 (de) * | 1985-06-28 | 1987-01-02 | Bayer Ag | Verfahren zur herstellung von 4,4'-dinitrodibenzylen |
DD240201A1 (de) * | 1985-08-12 | 1986-10-22 | Bitterfeld Chemie | Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeure ii |
-
1988
- 1988-03-08 US US07/165,648 patent/US4952725A/en not_active Expired - Fee Related
-
1989
- 1989-03-06 MX MX015154A patent/MX165579B/es unknown
- 1989-03-06 DD DD89326309A patent/DD279240A5/de not_active IP Right Cessation
- 1989-03-07 BR BR898901061A patent/BR8901061A/pt not_active Application Discontinuation
- 1989-03-07 PT PT89924A patent/PT89924B/pt not_active IP Right Cessation
- 1989-03-07 YU YU00485/89A patent/YU48589A/xx unknown
- 1989-03-07 SU SU894613777A patent/SU1736336A3/ru active
- 1989-03-07 EP EP19890103994 patent/EP0332137A3/de not_active Withdrawn
- 1989-03-08 JP JP1053959A patent/JPH024764A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
YU48589A (en) | 1990-06-30 |
BR8901061A (pt) | 1989-10-24 |
US4952725A (en) | 1990-08-28 |
JPH024764A (ja) | 1990-01-09 |
MX165579B (es) | 1992-11-24 |
EP0332137A3 (de) | 1991-04-17 |
DD279240A5 (de) | 1990-05-30 |
PT89924B (pt) | 1994-05-31 |
SU1736336A3 (ru) | 1992-05-23 |
EP0332137A2 (de) | 1989-09-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG3A | Patent granted, date of granting |
Effective date: 19931118 |
|
MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 19950531 |