ATE97661T1 - Herstellung von pyridazinon. - Google Patents

Herstellung von pyridazinon.

Info

Publication number: ATE97661T1
Authority: AT; Austria
Prior art keywords: pyridazine; acid; oxo; pyridazinone; production
Prior art date: 1988-09-13

Application number

AT89308761T

Other languages

English (en)

Inventor

Michael Yelland

John Conway

Original Assignee

Zeneca Ltd

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.)

1988-09-13

Filing date

1989-08-30

Publication date

1993-12-15

1989-08-30 Application filed by Zeneca Ltd filed Critical Zeneca Ltd

1993-12-15 Application granted granted Critical

1993-12-15 Publication of ATE97661T1 publication Critical patent/ATE97661T1/de

Links

238000004519 manufacturing process Methods 0.000 title abstract 2
AAILEWXSEQLMNI-UHFFFAOYSA-N 1h-pyridazin-6-one Chemical compound OC1=CC=CN=N1 AAILEWXSEQLMNI-UHFFFAOYSA-N 0.000 title 1
BAFCNWHOZHAYGE-UHFFFAOYSA-N 4-oxo-3h-pyridazine-3,5-dicarboxylic acid Chemical compound OC(=O)C1N=NC=C(C(O)=O)C1=O BAFCNWHOZHAYGE-UHFFFAOYSA-N 0.000 abstract 1
QJJQVVAYNHEGFH-UHFFFAOYSA-N 4-oxo-3h-pyridazine-3-carboxylic acid Chemical class OC(=O)C1N=NC=CC1=O QJJQVVAYNHEGFH-UHFFFAOYSA-N 0.000 abstract 1
IUIPYGPGINJGBK-UHFFFAOYSA-N 4-oxo-3h-pyridazine-5-carboxylic acid Chemical compound OC(=O)C1=CN=NCC1=O IUIPYGPGINJGBK-UHFFFAOYSA-N 0.000 abstract 1
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
239000002253 acid Substances 0.000 abstract 1
230000000911 decarboxylating effect Effects 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
239000000376 reactant Substances 0.000 abstract 1
235000011149 sulphuric acid Nutrition 0.000 abstract 1
239000001117 sulphuric acid Substances 0.000 abstract 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D237/00—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings
- C07D237/02—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings
- C07D237/06—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D237/10—Heterocyclic compounds containing 1,2-diazine or hydrogenated 1,2-diazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D237/24—Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Agricultural Chemicals And Associated Chemicals (AREA)
Plural Heterocyclic Compounds (AREA)
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)

AT89308761T 1988-09-13 1989-08-30 Herstellung von pyridazinon. ATE97661T1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB888821449A GB8821449D0 (en)	1988-09-13	1988-09-13	Pyridazinone manufacture
EP89308761A EP0359438B1 (de)	1988-09-13	1989-08-30	Herstellung von Pyridazinon

Publications (1)

Publication Number	Publication Date
ATE97661T1 true ATE97661T1 (de)	1993-12-15

Family

ID=10643514

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT89308761T ATE97661T1 (de)	1988-09-13	1989-08-30	Herstellung von pyridazinon.

Country Status (9)

Country	Link
US (1)	US5010192A (de)
EP (1)	EP0359438B1 (de)
JP (1)	JP2774834B2 (de)
AT (1)	ATE97661T1 (de)
AU (1)	AU634488B2 (de)
CA (1)	CA1313374C (de)
DE (1)	DE68910912T2 (de)
ES (1)	ES2062020T3 (de)
GB (1)	GB8821449D0 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB8821447D0 (en) *	1988-09-13	1988-10-12	Ici Plc	Pyridazinone manufacture
US5189163A (en) *	1989-08-30	1993-02-23	Imperial Chemical Industries Plc	Method of preparing pyridazinone derivatives
GB8919622D0 (en) *	1989-08-30	1989-10-11	Ici Plc	A method of preparing pyridazinone derivatives
CN1348457A (zh)	1999-02-02	2002-05-08	孟山都技术有限公司	膦酰基吡唑的生产
EP2052612A1 (de)	2007-10-24	2009-04-29	Bayer CropScience AG	Herbizid-Kombination
DE102008037629A1 (de)	2008-08-14	2010-02-18	Bayer Cropscience Ag	Herbizid-Kombination mit Dimethoxytriazinyl-substituierten Difluormethansulfonylaniliden

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4345934A (en) *	1977-03-10	1982-08-24	Rohm And Haas Company	Method of producing hybrid cereal grain seeds by application of 1-aryl-1,4-dihydro-4-oxo(thio)-pyridazines
US4732603A (en) *	1980-10-03	1988-03-22	Rohm And Haas Company	1-aryl-1,4-dihydro-4-oxo-5-carboxypyridazine derivatives and their use as plant growth regulators and hybridizing agents
GR75799B (de) *	1980-10-03	1984-08-02	Ici Plc
US4623378A (en) *	1983-08-10	1986-11-18	Ciba-Geigy Corporation	Gametocidal pyridazinylcarboxylic acid derivatives

1988
- 1988-09-13 GB GB888821449A patent/GB8821449D0/en active Pending
1989
- 1989-08-30 ES ES89308761T patent/ES2062020T3/es not_active Expired - Lifetime
- 1989-08-30 DE DE89308761T patent/DE68910912T2/de not_active Expired - Fee Related
- 1989-08-30 EP EP89308761A patent/EP0359438B1/de not_active Expired - Lifetime
- 1989-08-30 AT AT89308761T patent/ATE97661T1/de not_active IP Right Cessation
- 1989-09-12 CA CA000611368A patent/CA1313374C/en not_active Expired - Fee Related
- 1989-09-13 US US07/406,338 patent/US5010192A/en not_active Expired - Fee Related
- 1989-09-13 AU AU41377/89A patent/AU634488B2/en not_active Ceased
- 1989-09-13 JP JP1238322A patent/JP2774834B2/ja not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB8821449D0 (en)	1988-10-12
EP0359438A1 (de)	1990-03-21
JPH02131471A (ja)	1990-05-21
US5010192A (en)	1991-04-23
DE68910912D1 (de)	1994-01-05
ES2062020T3 (es)	1994-12-16
CA1313374C (en)	1993-02-02
EP0359438B1 (de)	1993-11-24
JP2774834B2 (ja)	1998-07-09
DE68910912T2 (de)	1994-03-17
AU4137789A (en)	1990-03-22
AU634488B2 (en)	1993-02-25

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Legal Events

Date	Code	Title	Description
1994-08-15	UEP	Publication of translation of european patent specification
2003-05-15	REN	Ceased due to non-payment of the annual fee