IL73808A - Processes for the preparation of nitrosamine-free n,n-disubstituted nitroaromatic amines and for the stabilization of these compounds against the formation of nitrosamines by treating said amines with sulfonic acids - Google Patents

Processes for the preparation of nitrosamine-free n,n-disubstituted nitroaromatic amines and for the stabilization of these compounds against the formation of nitrosamines by treating said amines with sulfonic acids

Info

Publication number: IL73808A
Authority: IL; Israel
Prior art keywords: amines; nitrosamine; preparation; nitrosamines; stabilization
Prior art date: 1983-12-14

Application number

IL73808A

Other languages

English (en)

Other versions

IL73808A0 (en

Original Assignee

Hoechst 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.)

1983-12-14

Filing date

1984-12-12

Publication date

1988-03-31

1984-12-12 Application filed by Hoechst Ag filed Critical Hoechst Ag

1985-03-31 Publication of IL73808A0 publication Critical patent/IL73808A0/xx

1988-03-31 Publication of IL73808A publication Critical patent/IL73808A/xx

Links

150000001412 amines Chemical class 0.000 title abstract 4
238000002360 preparation method Methods 0.000 title abstract 3
230000015572 biosynthetic process Effects 0.000 title abstract 2
238000000034 method Methods 0.000 title abstract 2
150000004005 nitrosamines Chemical class 0.000 title abstract 2
230000006641 stabilisation Effects 0.000 title abstract 2
238000011105 stabilization Methods 0.000 title abstract 2
150000001875 compounds Chemical class 0.000 title 1
150000003460 sulfonic acids Chemical class 0.000 title 1
LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 1
230000015556 catabolic process Effects 0.000 abstract 1
238000006731 degradation reaction Methods 0.000 abstract 1
239000003085 diluting agent Substances 0.000 abstract 1
239000007788 liquid Substances 0.000 abstract 1
XKLJHFLUAHKGGU-UHFFFAOYSA-N nitrous amide Chemical compound ON=N XKLJHFLUAHKGGU-UHFFFAOYSA-N 0.000 abstract 1
239000003960 organic solvent Substances 0.000 abstract 1

Classifications

- 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
- C07C211/54—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 two or three six-membered aromatic rings
- C07C211/56—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 two or three six-membered aromatic rings the carbon skeleton being further substituted by halogen atoms or by nitro or nitroso groups
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/82—Purification; Separation; Stabilisation; Use of additives
- C07C209/90—Stabilisation; Use of additives

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Agricultural Chemicals And Associated Chemicals (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

IL73808A 1983-12-14 1984-12-12 Processes for the preparation of nitrosamine-free n,n-disubstituted nitroaromatic amines and for the stabilization of these compounds against the formation of nitrosamines by treating said amines with sulfonic acids IL73808A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE19833345157 DE3345157A1 (de)	1983-12-14	1983-12-14	Verfahren zur herstellung von nitrosaminfreien n,n-disubstituierten nitroaromatischen aminen und deren stabilisierung gegen nitrosaminbildung

Publications (2)

Publication Number	Publication Date
IL73808A0 IL73808A0 (en)	1985-03-31
IL73808A true IL73808A (en)	1988-03-31

Family

ID=6216875

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IL73808A IL73808A (en)	1983-12-14	1984-12-12	Processes for the preparation of nitrosamine-free n,n-disubstituted nitroaromatic amines and for the stabilization of these compounds against the formation of nitrosamines by treating said amines with sulfonic acids

Country Status (14)

Country	Link
US (1)	US4638090A (fr)
EP (1)	EP0151725B1 (fr)
JP (1)	JPH0729996B2 (fr)
KR (1)	KR920005378B1 (fr)
AT (1)	ATE32710T1 (fr)
AU (1)	AU584316B2 (fr)
BR (1)	BR8406389A (fr)
CA (1)	CA1256902A (fr)
DD (1)	DD231565A5 (fr)
DE (2)	DE3345157A1 (fr)
HU (1)	HU193723B (fr)
IL (1)	IL73808A (fr)
SU (1)	SU1373315A3 (fr)
ZA (1)	ZA849703B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
IL78948A (en) *	1985-06-06	1991-03-10	Finchimica Srl	Process for purifying crude trifluralin
ES2054704T3 (es) *	1987-12-29	1994-08-16	Finchimica Srl	Un metodo para el tratamiento de dinitroanilinas para reducir su contenido de nitrosamina y/o estabilizarlas frente a la formacion de nitrosaminas.
AU594850B2 (en) *	1987-12-29	1990-03-15	Finchimica S.P.A.	A method for the treatment of dinitroanilines to reduce their nitrosamine content and/or to stabilise them against the formation of nitrosamines
US5160530A (en) *	1989-01-24	1992-11-03	Griffin Corporation	Microencapsulated polymorphic agriculturally active material
US5196585A (en) *	1990-10-02	1993-03-23	Dowelanco	Process for treating dinitroanilines with sulfite to reduce impurities and to reduce the ability to produce nitrosamines
IT1261259B (it) *	1993-09-13	1996-05-09	Finchimica Srl	Procedimento per la preparazione di ethalfluralin
US5728881A (en) *	1997-03-05	1998-03-17	Srm Chemical, Ltd. Co.	Process for preparing trifluralin
CN120172855A (zh) *	2025-05-21	2025-06-20	山东道可化学有限公司	一种氟乐灵中亚硝胺的去除方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4136117A (en) *	1973-06-25	1979-01-23	American Cyanamid Company	Preparation of 2,6-dinitroanilines
US4226789A (en) *	1977-07-18	1980-10-07	Eli Lilly And Company	Removal of nitrosamines from denitroanilines by treatment with HCl
RO75656A (fr) *	1977-07-18	1981-04-20	Eli Lilly And Co,Us	Procede pour la purification des dinitroanilines
US4127610A (en) *	1977-08-17	1978-11-28	Eli Lilly And Company	Dinitroaniline purification with bromine and chlorine
US4185035A (en) *	1977-09-02	1980-01-22	Eli Lilly And Company	Dinitroaniline purification with inorganic acid halides
US4120905A (en) *	1977-09-21	1978-10-17	Eli Lilly And Company	Removal of nitrosating agents
JPS5740446A (en) *	1980-08-25	1982-03-06	Nippon Kayaku Co Ltd	Method for reducing nitrosamine-content in 2,6- dinitroaniline derivative

1983
- 1983-12-14 DE DE19833345157 patent/DE3345157A1/de not_active Withdrawn
1984
- 1984-12-06 DE DE8484114821T patent/DE3469519D1/de not_active Expired
- 1984-12-06 AT AT84114821T patent/ATE32710T1/de not_active IP Right Cessation
- 1984-12-06 EP EP84114821A patent/EP0151725B1/fr not_active Expired
- 1984-12-10 HU HU844590A patent/HU193723B/hu not_active IP Right Cessation
- 1984-12-12 US US06/680,750 patent/US4638090A/en not_active Expired - Lifetime
- 1984-12-12 IL IL73808A patent/IL73808A/xx not_active IP Right Cessation
- 1984-12-12 SU SU843822554A patent/SU1373315A3/ru active
- 1984-12-12 DD DD84270679A patent/DD231565A5/de unknown
- 1984-12-13 ZA ZA849703A patent/ZA849703B/xx unknown
- 1984-12-13 BR BR8406389A patent/BR8406389A/pt not_active IP Right Cessation
- 1984-12-13 AU AU36653/84A patent/AU584316B2/en not_active Ceased
- 1984-12-13 KR KR1019840007886A patent/KR920005378B1/ko not_active Expired
- 1984-12-13 JP JP59261929A patent/JPH0729996B2/ja not_active Expired - Lifetime
- 1984-12-13 CA CA000469998A patent/CA1256902A/fr not_active Expired

Also Published As

Publication number	Publication date
KR850004577A (ko)	1985-07-25
HU193723B (en)	1987-11-30
ZA849703B (en)	1985-07-31
JPS60146851A (ja)	1985-08-02
DD231565A5 (de)	1986-01-02
BR8406389A (pt)	1985-10-08
AU3665384A (en)	1985-06-20
AU584316B2 (en)	1989-05-25
US4638090A (en)	1987-01-20
EP0151725A3 (en)	1986-05-28
IL73808A0 (en)	1985-03-31
JPH0729996B2 (ja)	1995-04-05
DE3345157A1 (de)	1985-06-27
DE3469519D1 (en)	1988-04-07
CA1256902A (fr)	1989-07-04
EP0151725B1 (fr)	1988-03-02
ATE32710T1 (de)	1988-03-15
SU1373315A3 (ru)	1988-02-07
EP0151725A2 (fr)	1985-08-21
HUT37115A (en)	1985-11-28
KR920005378B1 (ko)	1992-07-02

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Legal Events

Date	Code	Title	Description
1999-06-20	KB	Patent renewed
2003-09-17	RH1	Patent not in force