BR8602486A - Processo para a preparacao de sais do acido 4,4'-dinitroestilben-2,2'-dissulfonico - Google Patents

Processo para a preparacao de sais do acido 4,4'-dinitroestilben-2,2'-dissulfonico

Info

Publication number
BR8602486A
BR8602486A BR8602486A BR8602486A BR8602486A BR 8602486 A BR8602486 A BR 8602486A BR 8602486 A BR8602486 A BR 8602486A BR 8602486 A BR8602486 A BR 8602486A BR 8602486 A BR8602486 A BR 8602486A
Authority
BR
Brazil
Prior art keywords
dissulfonico
dinitroestilben
salts
preparation
acid
Prior art date
Application number
BR8602486A
Other languages
English (en)
Inventor
Guido Skipka
Friedrich Durholz
Original Assignee
Bayer Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6272114&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR8602486(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of BR8602486A publication Critical patent/BR8602486A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BR8602486A 1985-05-31 1986-05-30 Processo para a preparacao de sais do acido 4,4'-dinitroestilben-2,2'-dissulfonico BR8602486A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853519552 DE3519552A1 (de) 1985-05-31 1985-05-31 Verfahren zur herstellung von 4,4'-dinitrostilben-2,2'-disulfonsaeuresalzen

Publications (1)

Publication Number Publication Date
BR8602486A true BR8602486A (pt) 1987-01-27

Family

ID=6272114

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8602486A BR8602486A (pt) 1985-05-31 1986-05-30 Processo para a preparacao de sais do acido 4,4'-dinitroestilben-2,2'-dissulfonico

Country Status (6)

Country Link
US (1) US4680146A (pt)
EP (1) EP0203506B2 (pt)
JP (1) JPS61282355A (pt)
BR (1) BR8602486A (pt)
CA (1) CA1262554A (pt)
DE (2) DE3519552A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305648B1 (de) * 1987-08-12 1990-03-28 Ciba-Geigy Ag Verfahren zur Herstellung von 4,4'-Dinitrostilben-2,2'-disulfonsäure
JPS6456663A (en) * 1987-08-26 1989-03-03 Otsuka Chemical Co Ltd Pyrazole derivative and herbicide containing said derivative as active ingredient
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
US5021132A (en) * 1990-08-07 1991-06-04 Sandoz Ltd. Electrochemical process for preparing 4,4'-dinitrostilbene-2,2'-disulfonic acid and the salts thereof
DE4418305A1 (de) 1994-05-26 1995-11-30 Bayer Ag Verfahren zur Herstellung von 4.4'-Dinitrostilben-2.2'-disulfonsäure und ihren Salzen
EP1167309B1 (en) * 2000-06-28 2006-10-18 Japan Super Quartz Corporation Synthetic quartz powder, its production process, and synthetic quartz crucible
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

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
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.
JPS5738764A (en) * 1980-08-19 1982-03-03 Sumitomo Chem Co Ltd Preparation of 4,4'-dinitrostilbene-2,2'-disulfonic acid
DD204272A1 (de) * 1981-03-12 1983-11-23 Bitterfeld Chemie Verfahren zur herstellung von 4,4'-dinitrostilbendisulfonsaeure-(2,2')
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

Also Published As

Publication number Publication date
DE3660595D1 (en) 1988-09-29
DE3519552A1 (de) 1986-12-04
JPH0470310B2 (pt) 1992-11-10
EP0203506A1 (de) 1986-12-03
EP0203506B1 (en) 1988-08-24
EP0203506B2 (de) 1991-07-24
US4680146A (en) 1987-07-14
JPS61282355A (ja) 1986-12-12
CA1262554A (en) 1989-10-31

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Legal Events

Date Code Title Description
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30/05/2001

B15K Others concerning applications: alteration of classification

Ipc: C07C 309/00 (2006.01)