WO2006101058A1 - 3,6-ジクロロピリダジン-1-オキシドの製造法 - Google Patents
3,6-ジクロロピリダジン-1-オキシドの製造法 Download PDFInfo
- Publication number
- WO2006101058A1 WO2006101058A1 PCT/JP2006/305486 JP2006305486W WO2006101058A1 WO 2006101058 A1 WO2006101058 A1 WO 2006101058A1 JP 2006305486 W JP2006305486 W JP 2006305486W WO 2006101058 A1 WO2006101058 A1 WO 2006101058A1
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- WO
- WIPO (PCT)
- Prior art keywords
- acid
- anhydride
- hydrogen peroxide
- dichloropyridazine
- mmol
- Prior art date
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Classifications
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- 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
- C07D237/12—Halogen atoms or nitro radicals
Definitions
- the present invention relates to a novel and simple method for producing 3, 6-dichloropyridazine-1-oxide, which is useful as an intermediate for the synthesis of a physiologically active substance.
- Non-Patent Document 1 describes a method for producing 3,6-dichloropyridazine 1-year-old xoxide by reacting 3,6 dichroic pyridazine with monoperphthalic acid in ether.
- the yield of 3,6-dichloropyridazine 1-oxide is 9.4% or less, which is not satisfactory as a production method.
- Non-Patent Document 2 describes a method for producing 3,6-dichloropyridazine 1-year-old xoxide by reacting 3,6 dicyclopyridazine with perbenzoic acid in black mouth form.
- the reaction time is as long as 2 weeks, and the yield of 1,6-dichloropyridazine 1-year-old xoxide is 50% or less, which is not satisfactory as a production method.
- Non-Patent Document 3 describes a method for producing 3,6-dichloropyridazine 1-oxide by reacting 3,6-dichlorocyclopyridazine with 74% hydrogen peroxide and maleic anhydride in dichloromethane. Is described. However, in this method, the reaction time is as long as 7 days, and the yield of 1,6-dichloropyridazine 1-oxide is also 50%. Furthermore, 74% hydrogen peroxide is difficult to obtain and is not satisfactory as a production method.
- Non-Patent Document 4 describes a method for producing 3,6-dichloropyridazine 1-oxide by reacting 3,6-dichloropyridazine with 90% hydrogen peroxide and dichloromaleic anhydride in dichloromethane. Is described. This method yields 86% yield of 3,6-dichloropyridazine-1-oxide. However, 90% hydrogen peroxide is not satisfactory as a production method that is difficult to obtain and difficult to handle.
- Non-Patent Document 1 Chemical & Pharmaceutical Bulletin, 1962, 10 ⁇ , 10, 989–992
- Non-patent document 2 Journal of Pharmaceutical Sciences, 1962, 82 ⁇ , 2, 244-248
- Non-Patent Document 3 Journal of Heterocynch Chemistry, 9 ⁇ , 1972, 351-354
- Non-Patent Document 4 Synthesis, 1973, 495-496
- an object of the present invention is to provide a simple and high-yield synthesis method. To do.
- 3,6 dichroic pyridazine is a hydrogen peroxide or urea having a concentration of 60% or less in the presence of a suitable acid anhydride. It has been found that 3,6-dichlorodipyridazine 1-oxide can be obtained in high yield by anti-reversing it with Urea hydrogen peroxide addition compound (UHP). completed.
- UHP Urea hydrogen peroxide addition compound
- the present invention provides:
- Acid anhydride is formic anhydride, acetic anhydride, trichloroacetic anhydride, trifluoroacetic anhydride, propionic anhydride, butyric anhydride, succinic anhydride, maleic anhydride, dichloromaleic anhydride, phthalic anhydride 1, 6-dichlorophthalic anhydride, tetrachlorophthalic anhydride and tetrabromophthalic anhydride, (1) to (3) The manufacturing method of any one of these;
- Acid anhydride is trifluoroacetic anhydride, maleic anhydride, dichloromaleic anhydride , 3, 6-dichlorophthalic anhydride, tetrachlorophthalic anhydride, and tetrabromophthalic anhydride, one or more types of acid anhydrides, ;
- Acid is formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, pivalic acid, cyclohexane strength rubonic acid, 1-methylcyclohexane carboxylic acid, 1-adamantane carboxylic acid, attalic acid, methacrylic acid, croton Acid, 3,3-dimethylacrylic acid, tiglic acid, cinnamic acid, trifluoroacetic acid, chloroacetic acid, benzoic acid, methanesulfonic acid, trifluoromethanesulfonic acid or p-toluenesulfonic acid, (10) The production method described in;
- Acid is formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, bivalic acid, cyclohexane strength rubonic acid, 1-methylcyclohexanecarboxylic acid, 1-adamantanecarboxylic acid, attalic acid, methacrylic acid, croton
- 3,6-dichloropyridazine 1-oxide which is a synthetic intermediate of a physiologically active substance, can be synthesized more easily and in high yield.
- 3,6 Diclomouth Pyridazine which is a raw material of the method of the present invention, is a force using a commercially available product, or one described in Helvetica Chimica Acta 85 pp. 2195-2213 (2002) According to the method, it can be produced by chlorinating 1,2-dihydropyridazine 3,6-dione obtained from maleic anhydride and hydrazine with phosphorus oxychloride. It can also be produced according to the method described in Journal of the American Chemical Society, 73, 1873-1874 (1951), US Pat. No. 2,671086, and the like.
- the acid anhydride used in the method of the present invention is not particularly limited as long as it reacts with hydrogen peroxide to give peroxy acid (peracid).
- the acid anhydride to be used include lower alkyl carboxylic acid anhydrides, lower haloalkyl carboxylic acid anhydrides, lower alkenyl carboxylic acid anhydrides, lower haloalkenyl carboxylic acid anhydrides, and lower alkynyl carboxylic acid anhydrides.
- the amount of the acid anhydride used in the present invention is usually:! To 20 mol per lmol of 3,6 dichloropyridazine, preferably 2 ⁇ 10mo1.
- the acid anhydride is used in excess of the number of moles of water present in the reaction system, resulting in a higher yield of 3,6-dichloro Pyridazine- 1-oxide is obtained.
- acids corresponding to acid anhydrides such as maleic anhydride, dichloromaleic anhydride, 3,6-dichlorophthalphthalic anhydride, tetrachlorophthalic anhydride, tetrabromophthalic anhydride (maleic acid, If dianhydride can be regenerated from dichloromaleic acid, 3,6-dichlorophthalic acid, tetrachlorophthalic acid, tetrabromophthalic acid, etc.) by intramolecular dehydration reaction, it will be present in the reaction system. Even if the number of moles of acid anhydride is less than that of water, 3,6-dichloropyridazine 1-oxide is obtained in higher yield.
- the amount of acid anhydride used in the method of the present invention is usually 0.5 to 5 mol per lmol of 3,6 dichroic pyridazine, Preferably:! ⁇ 3mol
- the hydrogen peroxide used in the present invention is hydrogen peroxide having a concentration of 60% or less, and a commercially available one can be used.
- concentration of hydrogen peroxide is not particularly limited as long as it is 60% or less, but is preferably 20 to 60%, and more preferably 50 to 60%.
- the amount of hydrogen peroxide used is usually 0.5 to 5 mol (0.5 to 5 equivalents), preferably 1 to 5 mol (l to 5 equivalents) per lmol of 3,6-dichloropyridazine. More preferably, it is 1 to 3 mol (1 to 3 equivalents).
- the hydrogen peroxide addition compound of urea used in the method of the present invention it is produced according to the force using a commercially available one or the method described in JP-A-2002-60380 or the like. That power S.
- the amount of the hydrogen peroxide addition compound of urea used in the present invention is usually 0.5 to 5 mol (0.5 to 5 equivalents) per lmol of 3,6-dichloropyridazine, Is 1 to 5 mol (1 to 5 equivalents), more preferably 1 to 3 mol (1 to 3 equivalents).
- the method of the present invention can be carried out in the presence or absence of a solvent.
- the solvent to be used is not particularly limited as long as it does not affect the reaction.
- hydrocarbons such as hexane, heptane, benzene, toluene, xylene, dichloromethane, chlorophenol, 1,2-dichloroethane
- examples thereof include halogenated hydrocarbons such as carbon tetrachloride and black benzene, nitriles such as acetonitrile, and carboxylic acids such as formic acid, acetic acid and trifluoroacetic acid, and mixed solvents thereof.
- carboxylic acid is used as the solvent, the solvent can also serve as the acid described later.
- the present invention is performed using an acid, if necessary.
- the amount of acid is usually from 0.0 :! to lOOmol, preferably from 0.:! To 2 mol per lmol of 3,6-dichloropyridazine. It is.
- the amount of acid is usually 0. Olmol or more, preferably 0.:! To 20 mol, relative to lmol of 3,6-dichloropyridazine. By adding acid, 3,6-dichloropyridazine-1-oxide can be obtained in higher yield.
- Examples of the acid used include formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, pivalic acid, cyclohexanecarboxylic acid, 1-methylcyclohexanecarboxylic acid, 1-adamantanecarboxylic acid, acrylic acid, Methacrylic acid, crotonic acid, 3,3-dimethylacrylic acid, tiglic acid, cinnamic acid, trifluoroacetic acid, chloroacetic acid, carboxylic acids such as benzoic acid, methanesulfonic acid, trifluoromethanesulfonic acid or p-toluenesulfone Examples thereof include sulfonic acids such as acids, preferably formic acid, acetic acid, propionic acid, butyric acid, isobutyric acid, pivalic acid, cyclohexanecarboxylic acid, 1-methylcyclohexanecarboxylic acid, 1-adapter.
- the method of the present invention is performed using a dehydrating agent, if necessary.
- the dehydrating agent to be used is not particularly limited as long as it does not affect the reaction.
- molecular sieves 3
- molecular sieves (4 A) molecular sieves (4 A), anhydrous magnesium sulfate, anhydrous sodium sulfate, etc. It is possible to mention S, preferably anhydrous magnesium sulfate.
- hydrogen peroxide is added to 3,6 dichroic pyridazine:! To 5 equivalents, and an acid anhydride is added in excess of the number of moles of water present in the reaction system. This is particularly preferable in terms of yield. In the present invention, it is particularly preferable in terms of yield to add 1 to 5 equivalents of the hydrogen peroxide addition compound of urea to 3,6-dichloropyridazine.
- the reaction temperature is usually ⁇ 78 to 150 ° C., preferably ⁇ 10 ° C. to 80 ° C.
- the reaction time is generally 30 minutes to 5 days, preferably 1 hour to 3 days when hydrogen peroxide having a concentration of 60% is used. In the present invention, the reaction time is generally 30 minutes to 4 days, preferably 1 hour to 3 days, when a hydrogen peroxide addition compound of urea is used.
- the desired 3,6-dichloropyridazine 1-year-old xoxide can be collected from the reaction mixture according to a conventional method.
- the reaction mixture is poured into water, extracted with a water-immiscible solvent, the extract is dried, and then the solvent is distilled off to obtain 3,6-dichloropyridazine 1 oxide.
- 3, 6-Dichloromouth pyridazine 1 1-year-old xoxide can be purified by conventional methods such as recrystallization or column chromatography if necessary.
- Aqueous aqueous solution ((1lOOmmLL)) was added, and after stirring for 11 hours at 00 ° C CC, the mixture was extracted with dichlorochlorolomethatanone. .
- the organic / organic layer is washed and washed with 44 %% hydro-oxygenated natatotrilium aqueous solution, and the washed solution is re-extracted with dichlorochlorolomethametan. I did. . Combine this with the previous organic layer, and in the order of saturated sodium chloride chlorinated anammonium aqueous solution and saline water.
- Aqueous layer C was extracted with 1,2-dichloroethane (2 ⁇ 50 ml) to obtain organic layer D and aqueous layer D.
- Organic layer C and organic layer D were combined, dried over anhydrous sodium sulfate, concentrated under reduced pressure, and 9.39 g of 3,6-dichloropyridazine 1-oxide (purity 99.9%, yield 83.0%) Got.
- Organic layer A and organic layer B were combined and washed with water (100 ml) to obtain organic layer C and aqueous layer C.
- Aqueous layer C was extracted with 1,2-dichloroethane (2 ⁇ 50 ml) to obtain organic layer D and aqueous layer D.
- Organic layer C and organic layer D were combined, dried over anhydrous magnesium sulfate, concentrated under reduced pressure, and 9, 6-dichloropyridazine-1-oxide 9 ⁇ 73 g (purity 93.2%, yield 81 ⁇ 9%) Got.
- Aqueous layer C was extracted with 1,2-dichloroethane (2 X 5 ml) to obtain organic layer D and aqueous layer D.
- Organic layer C and organic layer D were combined, dried over anhydrous magnesium sulfate, concentrated under reduced pressure, and 3, 6-dichloropyridazine-1-oxide 0.995 g ( Purity 74.7%, yield 64.6%).
- Tetrachlorophthalic anhydride 578 mg (2.02 mmol), urea hydrogen peroxide addition compound 1 91 mg (2.03 mmol), 3,6-dichloropyrita, gin 151 mg (l. Olmmol) are suspended in 2 mL of acetic acid, Stir at room temperature for 2 days.
- acetic acid stir at room temperature for 2 days.
- the production ratio was 1: 4 in molar ratio. This means that the conversion rate of the reaction is 80%.
- the compound synthesized in Reference Example 1 has a herbicidal action and can be used as a herbicide.
- a herbicidal action for example, in paddy fields, by treating flooded soil before or after germination of weeds, strong weeds of paddy fields, annual broad-leaved weeds such as azena and kikashidasa; perennial calygaceae weeds such as firefly It shows herbicidal activity against grass weeds such as Tainubie and does not show any harmful phytotoxicity to rice.
- Reference Example 2 (Wetting agent) Compound obtained by Reference Example 1 (10 parts by mass), Carplex # 80D (Yoshio Shiono Pharmaceutical Co., Ltd., 10 parts by mass), Gohsenol GL05 (Nippon Gosei Chemical Co., Ltd., 2 parts by mass), New Coal 291PG (Dioctylsulfosuccinate sodium salt, manufactured by Nippon Emulsifier Co., Ltd., 0.5 parts by mass), Neogen Powder (Daiichi Kogyo Seiyaku Co., Ltd., 5 parts by mass), Radiolite # 200 (Sample Showa Chemical Co., Ltd., 10 parts by mass) and H derivative (Keiwa Furnace Co., Ltd., 62.5 parts by mass) are mixed thoroughly to obtain X-Sample KII-1 (Fuji Bowdal Co., Ltd.) To obtain a wettable powder.
- a 1 / 10,000a pot was filled with paddy soil, and the seeds of Tainubie, firefly, and annual broad-leaved weeds (Azena and Kikashidasa) that had been awakened to dormancy were mixed in the surface layer lcm.
- a tuber of Mizugayari was sprouting, and a 2.2-leaf rice seedling was transplanted to make it flooded and grown in a warm room.
- the prescribed amount of wettable powder prepared according to Reference Example 2 was diluted in water, and the spray solution was treated with flooded soil. And the phytotoxicity to transplanted rice was measured.
- the compound synthesized in Reference Example 1 showed an activity of 5 against broad-leaved weeds, fireflies, and Mizugayari at a dose of lOgZa, and 2 activities against Tainubier.
- paddy rice showed 0 activity (no phytotoxicity).
- 3,6-dichloropyridazine 1 oxide can be provided simply and with high yield, and various physiologically active substances can be advantageously synthesized using this as a synthetic intermediate.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06729454A EP1862461A1 (en) | 2005-03-22 | 2006-03-20 | Method for producing 3,6-dichloropyridazine-1-oxide |
JP2007509250A JPWO2006101058A1 (ja) | 2005-03-22 | 2006-03-20 | 3,6−ジクロロピリダジン−1−オキシドの製造法 |
CA002601789A CA2601789A1 (en) | 2005-03-22 | 2006-03-20 | Process for preparing 3,6-dichloropyridazine-1-oxide |
AU2006225676A AU2006225676A1 (en) | 2005-03-22 | 2006-03-20 | Method for producing 3,6-dichloropyridazine-1-oxide |
BRPI0609404-0A BRPI0609404A2 (pt) | 2005-03-22 | 2006-03-20 | processo para preparação de 1-óxido de 3,6-dicloropiridazina |
IL185853A IL185853A0 (en) | 2005-03-22 | 2007-09-10 | A process for preparing 3,6-dichloropyridazine-1-oxide |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2005082175 | 2005-03-22 | ||
JP2005-082174 | 2005-03-22 | ||
JP2005-082175 | 2005-03-22 | ||
JP2005082174 | 2005-03-22 |
Publications (1)
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WO2006101058A1 true WO2006101058A1 (ja) | 2006-09-28 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2006/305486 WO2006101058A1 (ja) | 2005-03-22 | 2006-03-20 | 3,6-ジクロロピリダジン-1-オキシドの製造法 |
Country Status (9)
Country | Link |
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EP (1) | EP1862461A1 (ja) |
JP (1) | JPWO2006101058A1 (ja) |
KR (1) | KR20070119707A (ja) |
AU (1) | AU2006225676A1 (ja) |
BR (1) | BRPI0609404A2 (ja) |
CA (1) | CA2601789A1 (ja) |
IL (1) | IL185853A0 (ja) |
TW (1) | TW200700394A (ja) |
WO (1) | WO2006101058A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011040445A1 (ja) * | 2009-09-30 | 2011-04-07 | 三井化学アグロ株式会社 | 3-置換オキシ-4-ピリダジノール誘導体の製造方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002060380A (ja) * | 2000-08-18 | 2002-02-26 | Mitsubishi Gas Chem Co Inc | 過酸化尿素の製造方法 |
JP2004284970A (ja) * | 2003-03-20 | 2004-10-14 | Sankyo Agro Kk | 3−(1h−ピラゾール−1−イル)ピリダジン−4−オール誘導体及びそれを含有する除草剤 |
-
2006
- 2006-03-20 KR KR1020077024112A patent/KR20070119707A/ko not_active Application Discontinuation
- 2006-03-20 BR BRPI0609404-0A patent/BRPI0609404A2/pt not_active Application Discontinuation
- 2006-03-20 WO PCT/JP2006/305486 patent/WO2006101058A1/ja active Application Filing
- 2006-03-20 EP EP06729454A patent/EP1862461A1/en not_active Withdrawn
- 2006-03-20 JP JP2007509250A patent/JPWO2006101058A1/ja active Pending
- 2006-03-20 AU AU2006225676A patent/AU2006225676A1/en not_active Abandoned
- 2006-03-20 CA CA002601789A patent/CA2601789A1/en not_active Abandoned
- 2006-03-21 TW TW095109530A patent/TW200700394A/zh unknown
-
2007
- 2007-09-10 IL IL185853A patent/IL185853A0/en unknown
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002060380A (ja) * | 2000-08-18 | 2002-02-26 | Mitsubishi Gas Chem Co Inc | 過酸化尿素の製造方法 |
JP2004284970A (ja) * | 2003-03-20 | 2004-10-14 | Sankyo Agro Kk | 3−(1h−ピラゾール−1−イル)ピリダジン−4−オール誘導体及びそれを含有する除草剤 |
Non-Patent Citations (2)
Title |
---|
KREGAR-CADEZ P. ET AL.: "Heterocycles. LXXXIX. Pyridazines. XLVII. Novel heterocyclic system, pyrido[2,3-c]pyridazine", JOURNAL OF HETEROCYCLIC CHEMISTRY, vol. 9, no. 2, 1972, pages 351 - 354, XP003002304 * |
POLLAK A. ET AL.: "Peroxydichloromaleic acid. New reagent for N-oxidation of heterocyclic compounds", SYNTHESIS, no. 8, 1973, pages 495 - 496, XP003002303 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011040445A1 (ja) * | 2009-09-30 | 2011-04-07 | 三井化学アグロ株式会社 | 3-置換オキシ-4-ピリダジノール誘導体の製造方法 |
KR20120091047A (ko) * | 2009-09-30 | 2012-08-17 | 미쓰이가가쿠 아그로 가부시키가이샤 | 3-치환옥시-4-피리다진올 유도체의 제조방법 |
US8552182B2 (en) | 2009-09-30 | 2013-10-08 | Mitsui Chemicals Agro, Inc. | Method for producing a 3-(substituted-oxy)-4-pyridazinol derivative |
KR101701546B1 (ko) | 2009-09-30 | 2017-02-01 | 미쓰이가가쿠 아그로 가부시키가이샤 | 3-치환옥시-4-피리다진올 유도체의 제조방법 |
Also Published As
Publication number | Publication date |
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KR20070119707A (ko) | 2007-12-20 |
CA2601789A1 (en) | 2006-09-28 |
TW200700394A (en) | 2007-01-01 |
JPWO2006101058A1 (ja) | 2008-09-04 |
BRPI0609404A2 (pt) | 2010-04-06 |
IL185853A0 (en) | 2008-01-06 |
AU2006225676A1 (en) | 2006-09-28 |
EP1862461A1 (en) | 2007-12-05 |
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