FR2403988A1 - Elimination des agents de nitrosation contenus dans le 1-chloro-2,6-dinitro-4-(trifluoromethyl)benzene - Google Patents
Elimination des agents de nitrosation contenus dans le 1-chloro-2,6-dinitro-4-(trifluoromethyl)benzeneInfo
- Publication number
- FR2403988A1 FR2403988A1 FR7826944A FR7826944A FR2403988A1 FR 2403988 A1 FR2403988 A1 FR 2403988A1 FR 7826944 A FR7826944 A FR 7826944A FR 7826944 A FR7826944 A FR 7826944A FR 2403988 A1 FR2403988 A1 FR 2403988A1
- Authority
- FR
- France
- Prior art keywords
- dinitro
- trifluoromethyl
- chloro
- benzene
- elimination
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- HFHAVERNVFNSHL-UHFFFAOYSA-N 2-chloro-1,3-dinitro-5-(trifluoromethyl)benzene Chemical compound [O-][N+](=O)C1=CC(C(F)(F)F)=CC([N+]([O-])=O)=C1Cl HFHAVERNVFNSHL-UHFFFAOYSA-N 0.000 title abstract 4
- 239000003795 chemical substances by application Substances 0.000 title abstract 3
- 230000008030 elimination Effects 0.000 title 1
- 238000003379 elimination reaction Methods 0.000 title 1
- 230000009935 nitrosation Effects 0.000 title 1
- 238000007034 nitrosation reaction Methods 0.000 title 1
- 238000011282 treatment Methods 0.000 abstract 2
- CGNBQYFXGQHUQP-UHFFFAOYSA-N 2,3-dinitroaniline Chemical class NC1=CC=CC([N+]([O-])=O)=C1[N+]([O-])=O CGNBQYFXGQHUQP-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000002363 herbicidal effect Effects 0.000 abstract 1
- 150000007529 inorganic bases Chemical class 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/16—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
- C07C205/07—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms
- C07C205/11—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings
- C07C205/12—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings the six-membered aromatic ring or a condensed ring system containing that ring being substituted by halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/68—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton
- C07C209/74—Preparation of compounds containing amino groups bound to a carbon skeleton from amines, by reactions not involving amino groups, e.g. reduction of unsaturated amines, aromatisation, or substitution of the carbon skeleton by halogenation, hydrohalogenation, dehalogenation, or dehydrohalogenation
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/44—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring
- C07C211/52—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to only one six-membered aromatic ring the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
L'invention concerne un procédé permettant d'abaisser la concentration en agents de nitrosation dans le 1-chloro-2,6-dinitro-4-(trifluorométhyl)benzène. On met le 1-chloro-2,6-dinitro-4-(trifluorométhyl)benzène contenant des agents de nitrosation en contact avec une solution aqueuse d'une base minérale à une température de 50 à 100 degrés C et l'on traite également ce produit par un gaz non réactif, en même temps que le traitement par la base ou après ce traitement. On peut éventuellement répéter l'un ou l'autre ou les deux traitements un certain nombre de fois. Purification du 1-chloro-2,6-dinitro-4-(trifluorométhyl)-benzène en vue de son utilisation dans la préparation de dinitro-anilines herbicides.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/835,087 US4120905A (en) | 1977-09-21 | 1977-09-21 | Removal of nitrosating agents |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2403988A1 true FR2403988A1 (fr) | 1979-04-20 |
FR2403988B1 FR2403988B1 (fr) | 1981-05-08 |
Family
ID=25268542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7826944A Granted FR2403988A1 (fr) | 1977-09-21 | 1978-09-20 | Elimination des agents de nitrosation contenus dans le 1-chloro-2,6-dinitro-4-(trifluoromethyl)benzene |
Country Status (22)
Country | Link |
---|---|
US (1) | US4120905A (fr) |
JP (1) | JPS5840940B2 (fr) |
AR (1) | AR218686A1 (fr) |
AU (1) | AU517729B2 (fr) |
BE (1) | BE870613A (fr) |
BR (1) | BR7806183A (fr) |
CA (1) | CA1080749A (fr) |
CS (1) | CS199222B2 (fr) |
DD (1) | DD138973A5 (fr) |
DE (1) | DE2840551C2 (fr) |
DK (1) | DK151955C (fr) |
ES (1) | ES473527A1 (fr) |
FR (1) | FR2403988A1 (fr) |
GB (1) | GB2004874B (fr) |
HU (1) | HU179462B (fr) |
IE (1) | IE47442B1 (fr) |
IL (1) | IL55584A (fr) |
IT (1) | IT1099110B (fr) |
MX (1) | MX5653E (fr) |
NL (1) | NL188694C (fr) |
PL (1) | PL118036B1 (fr) |
ZA (1) | ZA785344B (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3061492D1 (en) * | 1979-05-21 | 1983-02-03 | Hoechst Ag | Process for the removal of nitrozation agents from nitrated aromatic compounds |
DE2920448C3 (de) * | 1979-05-21 | 1982-02-11 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Entfernung von Nitrosierungsmittel (n) aus nitrierten aromatischen Verbindungen |
DE2926947C2 (de) * | 1979-07-04 | 1982-03-18 | Hoechst Ag, 6000 Frankfurt | Verfahren zur Entfernung von Nitrosierungsmittel (n) aus nitrierten aromatischen Verbindungen |
US4391992A (en) * | 1979-08-24 | 1983-07-05 | American Cyanamid Company | N-Denitration of N,2,6-trinitroanilines with phase transfer catalysts |
US4331819A (en) * | 1980-04-24 | 1982-05-25 | E. I. Du Pont De Nemours And Company | Water removal in nitration of aromatic hydrocarbons |
IT1131182B (it) * | 1980-05-15 | 1986-06-18 | Montedison Spa | Processo di preparazione di n-di-n-propil-2,6-dinitro-4-trifluorometilanilina a basso contenuto di nitrosammine |
SU1616514A3 (ru) * | 1982-04-22 | 1990-12-23 | Оксон Италия С.П.А. (Фирма) | Способ очистки 1-хлор-2,6-динитро-4-(трифторметил)бензола |
US4440962A (en) * | 1982-04-22 | 1984-04-03 | Oxon Italia S.P.A. | Process for removing nitrosating agents from 1-chloro-2,6-dinitro-4-(trifluoromethyl) benzene |
DE3345157A1 (de) * | 1983-12-14 | 1985-06-27 | Hoechst Ag, 6230 Frankfurt | Verfahren zur herstellung von nitrosaminfreien n,n-disubstituierten nitroaromatischen aminen und deren stabilisierung gegen nitrosaminbildung |
IT1190440B (it) * | 1985-12-18 | 1988-02-16 | Finchimica Spa | Procedimento migliorato per la purificazione della trifluralina |
US4876388A (en) * | 1986-07-31 | 1989-10-24 | IΠCI. S.p.A. | Method for the purification of trifuraline |
US5728881A (en) * | 1997-03-05 | 1998-03-17 | Srm Chemical, Ltd. Co. | Process for preparing trifluralin |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2669576A (en) * | 1944-12-30 | 1954-02-16 | Alfred T Blomquist | Method of improving the properties of certain explosives |
US2876267A (en) * | 1957-02-15 | 1959-03-03 | Gen Aniline & Film Corp | Purification of 4-chloronitrotoluenes |
-
1977
- 1977-09-21 US US05/835,087 patent/US4120905A/en not_active Expired - Lifetime
-
1978
- 1978-09-18 IT IT27803/78A patent/IT1099110B/it active
- 1978-09-18 IL IL55584A patent/IL55584A/xx unknown
- 1978-09-18 AR AR273744A patent/AR218686A1/es active
- 1978-09-18 DE DE2840551A patent/DE2840551C2/de not_active Expired
- 1978-09-19 CA CA311,630A patent/CA1080749A/fr not_active Expired
- 1978-09-19 GB GB7837396A patent/GB2004874B/en not_active Expired
- 1978-09-19 AU AU39980/78A patent/AU517729B2/en not_active Expired
- 1978-09-20 BR BR7806183A patent/BR7806183A/pt unknown
- 1978-09-20 ZA ZA785344A patent/ZA785344B/xx unknown
- 1978-09-20 MX MX787399U patent/MX5653E/es unknown
- 1978-09-20 ES ES473527A patent/ES473527A1/es not_active Expired
- 1978-09-20 IE IE1896/78A patent/IE47442B1/en not_active IP Right Cessation
- 1978-09-20 DK DK415878A patent/DK151955C/da not_active IP Right Cessation
- 1978-09-20 HU HU78EI813A patent/HU179462B/hu not_active IP Right Cessation
- 1978-09-20 JP JP53116461A patent/JPS5840940B2/ja not_active Expired
- 1978-09-20 BE BE1009064A patent/BE870613A/fr not_active IP Right Cessation
- 1978-09-20 FR FR7826944A patent/FR2403988A1/fr active Granted
- 1978-09-21 DD DD78208004A patent/DD138973A5/xx unknown
- 1978-09-21 PL PL1978209749A patent/PL118036B1/pl unknown
- 1978-09-21 NL NLAANVRAGE7809632,A patent/NL188694C/xx not_active IP Right Cessation
- 1978-09-21 CS CS786096A patent/CS199222B2/cs unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2669576A (en) * | 1944-12-30 | 1954-02-16 | Alfred T Blomquist | Method of improving the properties of certain explosives |
US2876267A (en) * | 1957-02-15 | 1959-03-03 | Gen Aniline & Film Corp | Purification of 4-chloronitrotoluenes |
Also Published As
Publication number | Publication date |
---|---|
BR7806183A (pt) | 1979-04-17 |
PL209749A1 (pl) | 1979-06-04 |
AU517729B2 (en) | 1981-08-20 |
NL7809632A (nl) | 1979-03-23 |
IL55584A0 (en) | 1978-12-17 |
CA1080749A (fr) | 1980-07-01 |
HU179462B (en) | 1982-10-28 |
DE2840551C2 (de) | 1984-09-27 |
DK415878A (da) | 1979-03-22 |
GB2004874A (en) | 1979-04-11 |
FR2403988B1 (fr) | 1981-05-08 |
DD138973A5 (de) | 1979-12-05 |
GB2004874B (en) | 1982-04-15 |
NL188694C (nl) | 1992-09-01 |
US4120905A (en) | 1978-10-17 |
IE781896L (en) | 1979-03-21 |
IT7827803A0 (it) | 1978-09-18 |
PL118036B1 (en) | 1981-09-30 |
ES473527A1 (es) | 1979-10-16 |
DK151955C (da) | 1988-07-11 |
BE870613A (fr) | 1979-03-20 |
AU3998078A (en) | 1980-03-27 |
AR218686A1 (es) | 1980-06-30 |
JPS5840940B2 (ja) | 1983-09-08 |
DK151955B (da) | 1988-01-18 |
CS199222B2 (en) | 1980-07-31 |
IE47442B1 (en) | 1984-03-21 |
IL55584A (en) | 1981-03-31 |
IT1099110B (it) | 1985-09-18 |
JPS5455527A (en) | 1979-05-02 |
DE2840551A1 (de) | 1979-03-29 |
ZA785344B (en) | 1980-04-30 |
MX5653E (es) | 1983-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |