WO1996034859A1 - Verfahren zur herstellung von substituierten aryluracilen - Google Patents
Verfahren zur herstellung von substituierten aryluracilen Download PDFInfo
- Publication number
- WO1996034859A1 WO1996034859A1 PCT/EP1996/001669 EP9601669W WO9634859A1 WO 1996034859 A1 WO1996034859 A1 WO 1996034859A1 EP 9601669 W EP9601669 W EP 9601669W WO 9634859 A1 WO9634859 A1 WO 9634859A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chlorine
- fluorine
- cyano
- alkyl
- bromine
- Prior art date
Links
- SBNXNGVTAIVSNZ-UHFFFAOYSA-N CCS(Nc(c(C#N)c1)cc(N(C(C=C(C(F)(F)F)N2)=O)C2=O)c1F)(=O)=O Chemical compound CCS(Nc(c(C#N)c1)cc(N(C(C=C(C(F)(F)F)N2)=O)C2=O)c1F)(=O)=O SBNXNGVTAIVSNZ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D239/00—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings
- C07D239/02—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings
- C07D239/24—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D239/28—Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more 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, directly attached to ring carbon atoms
- C07D239/46—Two or more oxygen, sulphur or nitrogen atoms
- C07D239/52—Two oxygen atoms
- C07D239/54—Two oxygen atoms as doubly bound oxygen atoms or as unsubstituted hydroxy radicals
Definitions
- the invention relates to a new process for the preparation of substituted aryl uracils, which are known as herbicidally active compounds.
- sodium hydride which is not very suitable for industrial purposes, is used as the acid acceptor and the reaction is carried out in several stages.
- R 1 represents hydrogen or halogen
- R 2 represents cyano, halogen, thiocarbamoyl or optionally substituted alkyl
- R 3 represents optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl or arylalkyl
- R 4 represents hydrogen, halogen or optionally substituted alkyl
- R 5 represents optionally substituted alkyl
- R 4 and R 5 have the meanings given above and
- R represents alkyl, aryl or arylalkyl
- R 1 and R 2 have the meanings given above,
- R represents alkyl, aryl or arylalkyl
- R .1, R, R, R and X have the meanings given above,
- R 3 has the meaning given above
- substituted aryluracils of the general formula (I) can be prepared in a simpler manner than in the known prior art in good yields and in high purity by the process according to the invention.
- the method according to the invention thus represents a valuable enrichment of the prior art.
- the process according to the invention preferably relates to the preparation of compounds of the formula (I) in which R 1 represents hydrogen, fluorine, chlorine or bromine,
- R for cyano, fluorine, chlorine, bromine, thiocarbamoyl or optionally through
- R 3 for alkyl, alkenyl or alkynyl, each optionally substituted by cyano, fluorine, chlorine, bromine or C r C 4 alkoxy, each having up to 6 carbon atoms, each optionally substituted by cyano, fluorine, chlorine, bromine or C j -C 4 Alkyl substituted cycloalkyl or cycloalkylalkyl having 3 to 8 carbon atoms in the cycloalkyl part and optionally 1 to 4 carbon atoms in the alkyl part, for each optionally by fluorine,
- Fluorine, chlorine, bromine, cyano, methoxy or ethoxy is substituted), aryl substituted by phenyl, phenyloxy or phenylthio (which are each optionally substituted by fluorine, chlorine, bromine, cyano, methyl, methoxy, trifluoromethyl and / or trifluoromethoxy) or arylalkyl having 6 or 10 carbon atoms in the aryl part and optionally 1 to 4 carbon atoms in the alkyl part,
- R 4 represents hydrogen, fluorine, chlorine, bromine or alkyl which has 1 to 6 carbon atoms and is optionally substituted by fluorine and / or chlorine and
- R 5 represents alkyl optionally substituted by fluorine, chlorine, bromine, methoxy or ethoxy and has 1 to 6 carbon atoms.
- the process according to the invention relates in particular to the production of compounds of the formula (I) in which
- R 1 represents hydrogen, fluorine or chlorine, , 0
- R ⁇ represents cyano, fluorine, chlorine, bromine, thiocarbamoyl, methyl or trifluoromethyl
- R 3 for methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl, ethenyl, propenyl, butenyl, ethynyl which is optionally substituted by cyano, fluorine, chlorine, methoxy or ethoxy, Propynyl or butynyl, for cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl or cyclohexylmethyl, each optionally substituted by cyano, fluorine, chlorine, bromine, methyl, ethyl, n- or i-propyl by fluorine, chlorine, bromine, cyano, nitro, carboxy, carbamoyl, thiocarbamoyl, by methyl, ethyl, n-
- R 4 represents hydrogen, fluorine, chlorine, bromine, methyl, ethyl or trifluoromethyl
- R 5 represents methyl, ethyl, trifluoromethyl, chlorodifluoromethyl, fluorodichloromethyl or pentafluoroethyl.
- the aminoalkenic acid esters to be used as starting materials in the process according to the invention for the preparation of the compounds of the formula (I) are generally defined by the formula (II).
- R 4 and R 5 preferably or in particular have the meaning which have been described above in the description of the compounds of the formula (I) to be prepared according to the invention, preferably or as particularly preferred for R 4 and R 5 was given;
- R preferably represents C j -C 4 alkyl, phenyl or benzyl, in particular methyl, ethyl or phenyl.
- Formula (III) provides a general definition of the aryl urethanes to be used as starting materials in the process according to the invention for the preparation of the compounds of formula (I).
- R 1 and R 2 preferably or in particular have the meaning which have already been described above in the description of the compounds of the formula (I) to be prepared according to the invention, preferably or as particularly preferred for R 1 and R 2 was specified;
- R preferably represents C j -C 4 alkyl, phenyl or benzyl, in particular methyl, ethyl or phenyl,
- X preferably represents fluorine, chlorine or bromine, in particular fluorine or chlorine.
- Formula (IV) provides a general definition of the sulfonamides to be used as starting materials in the process according to the invention for the preparation of the compounds of the formula (I).
- R 3 preferably or in particular has the meaning which has already been mentioned above in the description of the compounds of the formula (I) to be prepared according to the invention preferably or as particularly preferred for R 3 .
- the starting materials of the formula (IV) are known synthetic chemicals.
- the process according to the invention is carried out in the first stage using a metal alcoholate or a metal carbonate as acid binder.
- Alkali metal alcoholates such as lithium, sodium, potassium alcoholates having 1 to 5 carbon atoms, in particular sodium or potassium methylate, ethylate, n- or i-propylate, n-, i-, s- or t-butoxide, are preferred , or alkali metal or alkaline earth metal carbonates, such as lithium, sodium, potassium, magnesium and calcium carbonate, in particular potassium carbonate, are used as acid binders.
- the process according to the invention is carried out in the second stage using a metal carbonate as acid binder.
- a metal carbonate as acid binder.
- Alkali metal or alkaline earth metal carbonates such as lithium, sodium, potassium, magnesium and calcium carbonate, are preferably used as acid binders.
- Potassium carbonate is very particularly preferred as an acid binder.
- the process according to the invention is carried out - in both stages - in the presence of an aprotic polar solvent.
- these solvents are: ketones such as methyl ethyl ketone, methyl i-propyl ketone and methyl i-butyl ketone, esters such as ethyl acetate, n- or -i-propyl acetate and n-, -i- or -s-butyl ester, nitriles such as acetonitrile, propionitrile and butyronitrile, amides such as dimethylformamide and dimethylacetamide, also dimethyl sulfoxide, tetramethylene sulfone (sulfolane), N-methyl-pyrrolidone and hexamethylphosphoric acid triamide.
- N-methyl-pyrrolidone is very particularly preferred as solvent in the process according to the invention.
- the reaction temperatures can be varied within a substantial range when carrying out the first stage of the process according to the invention. In general, temperatures between -20 ° C and 100 ° C, preferably between 0 ° C and 80 ° C, in particular between 0 ° C and 60 ° C.
- the reaction temperatures can also be varied within a relatively wide range when carrying out the second stage of the process according to the invention. In general, temperatures between 20 ° C. and 200 ° C., preferably between 50 ° C. and 180 ° C., in particular between 80 ° C. and 160 ° C.
- the process according to the invention is generally carried out in two stages
- Formula (II) generally between 0.5 and 1.5 mol, preferably between 0.7 and 1.3 mol aryl urethane of the formula (III) and between 0.5 and 2.0 mol, preferably between 0.8 and 1.5 moles of sulfonamide of formula (IV).
- the aminoalkenic acid ester of the formula (II) is heated to about 100 ° C. with an alkali metal or alkaline earth metal carbonate in an aprotic polar solvent with stirring. Then an aryl urethane of the formula (III) is added and the mixture is heated for some time at a somewhat elevated temperature - at about 120 ° C. to 150 ° C. - the alcohol liberated during the reaction being removed by distillation. A sulfonamide of the formula (IV) and, if appropriate, an alkali metal or alkaline earth metal carbonate are then added and the mixture is stirred at the above-mentioned elevated temperature until the end of the reaction.
- the aqueous phase is acidified with about 10% hydrochloric acid and extracted three times with 300 ml of methylene chloride.
- the combined organic phases are washed twice with 250 ml of water each time and concentrated in a water jet vacuum.
- the mixture is stirred at 20 ° C. for two hours, left to stand for about 15 hours and then suction filtered.
- the solid crude product is suspended in 2750 ml of i-propanol, the mixture is stirred under reflux for two hours and for a further about 15 hours at about 20 ° C. Then the cleaned product is isolated by suction.
- NMP N-methyl-pyrrolidone
- the NMP is then largely distilled off, the residue is taken up in 2.75 liters of water, 1500 ml of methylene chloride are added, the mixture is acidified with 10% hydrochloric acid and the mixture is stirred at about 20 ° C. for two hours. The crystalline product is then isolated by suction (1st product fraction).
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8532969A JPH11504908A (ja) | 1995-05-03 | 1996-04-22 | 置換アリールウラシル類の製造方法 |
MX9708398A MX9708398A (es) | 1995-05-03 | 1996-04-22 | Procedimiento para la obtencion de ariluracilos substituidos. |
US08/945,558 US5847137A (en) | 1995-05-03 | 1996-04-22 | Process for preparing substituted aryluracils |
EP96914968A EP0823899A1 (de) | 1995-05-03 | 1996-04-22 | Verfahren zur herstellung von substituierten aryluracilen |
AU56914/96A AU5691496A (en) | 1995-05-03 | 1996-04-22 | Process for preparing substituted aryluracils |
BR9608168A BR9608168A (pt) | 1995-05-03 | 1996-04-22 | Processo para a preparação de ariluracilas substituídas |
US09/086,432 US5856559A (en) | 1995-05-03 | 1998-05-28 | Process for preparing substituted aryluracils |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19516168.8 | 1995-05-03 | ||
DE19516168 | 1995-05-03 | ||
DE19543676.8 | 1995-11-23 | ||
DE19543676A DE19543676A1 (de) | 1995-05-03 | 1995-11-23 | Verfahren zur Herstellung von substituierten Aryluracilen |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996034859A1 true WO1996034859A1 (de) | 1996-11-07 |
Family
ID=26014829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/001669 WO1996034859A1 (de) | 1995-05-03 | 1996-04-22 | Verfahren zur herstellung von substituierten aryluracilen |
Country Status (9)
Country | Link |
---|---|
US (2) | US5847137A (de) |
EP (1) | EP0823899A1 (de) |
JP (1) | JPH11504908A (de) |
CN (1) | CN1100044C (de) |
AU (1) | AU5691496A (de) |
BR (1) | BR9608168A (de) |
HU (1) | HUP9801592A3 (de) |
MX (1) | MX9708398A (de) |
WO (1) | WO1996034859A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100398523C (zh) * | 2005-06-13 | 2008-07-02 | 上海师范大学 | 2,4-二氯苯氧乙酰胺嘧啶衍生物及其制备方法和农药组合物 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0563384A1 (de) * | 1990-12-17 | 1993-10-06 | Nissan Chemical Industries, Limited | Uracilderivat |
DE4412079A1 (de) * | 1993-08-18 | 1995-02-23 | Bayer Ag | N-Cyanoaryl-Stickstoffheterocyclen |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5213823A (en) * | 1992-03-20 | 1993-05-25 | The Goodyear Tire & Rubber Company | Turnup bladder having outer layer of PVC/acrylonitrile butadiene rubber blend |
ES2110667T3 (es) * | 1993-08-18 | 1998-02-16 | Bayer Ag | N-cianoaril-heterociclos nitrogenados. |
-
1996
- 1996-04-22 EP EP96914968A patent/EP0823899A1/de not_active Withdrawn
- 1996-04-22 MX MX9708398A patent/MX9708398A/es unknown
- 1996-04-22 CN CN96194686A patent/CN1100044C/zh not_active Expired - Fee Related
- 1996-04-22 JP JP8532969A patent/JPH11504908A/ja not_active Ceased
- 1996-04-22 US US08/945,558 patent/US5847137A/en not_active Expired - Fee Related
- 1996-04-22 BR BR9608168A patent/BR9608168A/pt active Search and Examination
- 1996-04-22 WO PCT/EP1996/001669 patent/WO1996034859A1/de active IP Right Grant
- 1996-04-22 AU AU56914/96A patent/AU5691496A/en not_active Abandoned
- 1996-04-22 HU HU9801592A patent/HUP9801592A3/hu unknown
-
1998
- 1998-05-28 US US09/086,432 patent/US5856559A/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0563384A1 (de) * | 1990-12-17 | 1993-10-06 | Nissan Chemical Industries, Limited | Uracilderivat |
DE4412079A1 (de) * | 1993-08-18 | 1995-02-23 | Bayer Ag | N-Cyanoaryl-Stickstoffheterocyclen |
Non-Patent Citations (1)
Title |
---|
G.VALKANAS: "PREPARATION OF SOME FLUORINATED A-AMINOANTHRAQUINONES.SULFONATION AND SUBSEQUENT REACTIONS OF FLUORINATED ANTHRAQUINONES.", JOURNAL OF THE CHEMICAL SOCIETY, no. 358, 1963, LETCHWORTH GB, pages 11923 - 1925, XP002008195 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100398523C (zh) * | 2005-06-13 | 2008-07-02 | 上海师范大学 | 2,4-二氯苯氧乙酰胺嘧啶衍生物及其制备方法和农药组合物 |
Also Published As
Publication number | Publication date |
---|---|
AU5691496A (en) | 1996-11-21 |
MX9708398A (es) | 1998-02-28 |
BR9608168A (pt) | 1999-02-09 |
US5847137A (en) | 1998-12-08 |
CN1100044C (zh) | 2003-01-29 |
EP0823899A1 (de) | 1998-02-18 |
HUP9801592A3 (en) | 2001-05-28 |
JPH11504908A (ja) | 1999-05-11 |
US5856559A (en) | 1999-01-05 |
CN1187816A (zh) | 1998-07-15 |
HUP9801592A2 (hu) | 1998-10-28 |
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