NO122700B - - Google Patents
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- NO122700B NO122700B NO167411A NO16741167A NO122700B NO 122700 B NO122700 B NO 122700B NO 167411 A NO167411 A NO 167411A NO 16741167 A NO16741167 A NO 16741167A NO 122700 B NO122700 B NO 122700B
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- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 42
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 19
- 239000003208 petroleum Substances 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 239000002253 acid Substances 0.000 claims description 6
- -1 alkali metal salt Chemical class 0.000 claims description 6
- NGNBDVOYPDDBFK-UHFFFAOYSA-N 2-[2,4-di(pentan-2-yl)phenoxy]acetyl chloride Chemical compound CCCC(C)C1=CC=C(OCC(Cl)=O)C(C(C)CCC)=C1 NGNBDVOYPDDBFK-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 150000004820 halides Chemical class 0.000 claims description 4
- VSNHCAURESNICA-UHFFFAOYSA-N Hydroxyurea Chemical class NC(=O)NO VSNHCAURESNICA-UHFFFAOYSA-N 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 150000003454 sulfinic acid halides Chemical class 0.000 claims description 3
- 229940100389 Sulfonylurea Drugs 0.000 claims description 2
- 229910052783 alkali metal Inorganic materials 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- 125000003282 alkyl amino group Chemical group 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 2
- BUUPQKDIAURBJP-UHFFFAOYSA-N sulfinic acid Chemical compound OS=O BUUPQKDIAURBJP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 125000005843 halogen group Chemical group 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 12
- 238000003756 stirring Methods 0.000 description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000011541 reaction mixture Substances 0.000 description 6
- 238000010992 reflux Methods 0.000 description 6
- APTFDFXACXBQDO-UHFFFAOYSA-N 1-butyl-3-hydroxyurea Chemical compound CCCCNC(=O)NO APTFDFXACXBQDO-UHFFFAOYSA-N 0.000 description 5
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 5
- 239000008346 aqueous phase Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 238000001953 recrystallisation Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- JLRGJRBPOGGCBT-UHFFFAOYSA-N Tolbutamide Chemical compound CCCCNC(=O)NS(=O)(=O)C1=CC=C(C)C=C1 JLRGJRBPOGGCBT-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- JEHKKBHWRAXMCH-UHFFFAOYSA-N benzenesulfinic acid Chemical compound O[S@@](=O)C1=CC=CC=C1 JEHKKBHWRAXMCH-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000002178 crystalline material Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229960001330 hydroxycarbamide Drugs 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000020477 pH reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- TYZHJGCYLYXPSB-UHFFFAOYSA-N 1-(4-chlorophenyl)sulfonyl-3-cyclohexylurea Chemical compound C1=CC(Cl)=CC=C1S(=O)(=O)NC(=O)NC1CCCCC1 TYZHJGCYLYXPSB-UHFFFAOYSA-N 0.000 description 1
- XDUXYYDDHASTLI-UHFFFAOYSA-N 1-(benzenesulfonyl)-3-propylurea Chemical compound CCCNC(=O)NS(=O)(=O)C1=CC=CC=C1 XDUXYYDDHASTLI-UHFFFAOYSA-N 0.000 description 1
- YWXUADNLTYADPN-UHFFFAOYSA-N 1-butyl-3-(4-chlorophenyl)sulfonylurea Chemical compound CCCCNC(=O)NS(=O)(=O)C1=CC=C(Cl)C=C1 YWXUADNLTYADPN-UHFFFAOYSA-N 0.000 description 1
- IRMBSCHMQJLMEG-UHFFFAOYSA-N 1-butyl-3-(4-methoxyphenyl)sulfonylurea Chemical compound CCCCNC(=O)NS(=O)(=O)C1=CC=C(OC)C=C1 IRMBSCHMQJLMEG-UHFFFAOYSA-N 0.000 description 1
- AFPCHXICZQCREU-UHFFFAOYSA-N 1-hydroxy-3-propylurea Chemical compound CCCNC(=O)NO AFPCHXICZQCREU-UHFFFAOYSA-N 0.000 description 1
- DILXLMRYFWFBGR-UHFFFAOYSA-N 2-formylbenzene-1,4-disulfonic acid Chemical compound OS(=O)(=O)C1=CC=C(S(O)(=O)=O)C(C=O)=C1 DILXLMRYFWFBGR-UHFFFAOYSA-N 0.000 description 1
- YDQNDKBOOVXRTL-UHFFFAOYSA-N 4-acetamidobenzenesulfinic acid Chemical compound CC(=O)NC1=CC=C(S(O)=O)C=C1 YDQNDKBOOVXRTL-UHFFFAOYSA-N 0.000 description 1
- AOQYAMDZQAEDLO-UHFFFAOYSA-N 4-chlorobenzenesulfinic acid Chemical compound OS(=O)C1=CC=C(Cl)C=C1 AOQYAMDZQAEDLO-UHFFFAOYSA-N 0.000 description 1
- YVZWQPOTHRMEQW-UHFFFAOYSA-N 4-methoxybenzenesulfinic acid Chemical compound COC1=CC=C(S(O)=O)C=C1 YVZWQPOTHRMEQW-UHFFFAOYSA-N 0.000 description 1
- DYYLCPSSSFWEEA-UHFFFAOYSA-N 4-methylbenzenesulfinyl chloride Chemical compound CC1=CC=C(S(Cl)=O)C=C1 DYYLCPSSSFWEEA-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- WETWJCDKMRHUPV-UHFFFAOYSA-N acetyl chloride Chemical compound CC(Cl)=O WETWJCDKMRHUPV-UHFFFAOYSA-N 0.000 description 1
- 239000012346 acetyl chloride Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 230000003178 anti-diabetic effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 125000004391 aryl sulfonyl group Chemical group 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- PASDCCFISLVPSO-UHFFFAOYSA-N benzoyl chloride Chemical compound ClC(=O)C1=CC=CC=C1 PASDCCFISLVPSO-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- RIGBPMDIGYBTBJ-UHFFFAOYSA-N glycyclamide Chemical compound C1=CC(C)=CC=C1S(=O)(=O)NC(=O)NC1CCCCC1 RIGBPMDIGYBTBJ-UHFFFAOYSA-N 0.000 description 1
- 150000002367 halogens Chemical group 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- AFOGBLYPWJJVAL-UHFFFAOYSA-N phenbutamide Chemical compound CCCCNC(=O)NS(=O)(=O)C1=CC=CC=C1 AFOGBLYPWJJVAL-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- KFZUDNZQQCWGKF-UHFFFAOYSA-M sodium;4-methylbenzenesulfinate Chemical compound [Na+].CC1=CC=C(S([O-])=O)C=C1 KFZUDNZQQCWGKF-UHFFFAOYSA-M 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 150000003453 sulfinic acid esters Chemical class 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- IWOKCMBOJXYDEE-UHFFFAOYSA-N sulfinylmethane Chemical compound C=S=O IWOKCMBOJXYDEE-UHFFFAOYSA-N 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical compound OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/36—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids
- C07C303/40—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids by reactions not involving the formation of sulfonamide groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Description
Fremgangsmåte for fremstilling av aryl-sulfonyl-urinstoffderivater. Process for the preparation of aryl sulfonyl urea derivatives.
Denne oppfinnelse angår en. ny fremgangsmåte for fremstilling av aryl-sulfonyl-urinstoffderivater med den generelle formel This invention relates to a new process for the preparation of aryl-sulfonyl-urea derivatives of the general formula
hvor R<1>betyr fenyl, som kan være substituert med halogen, lavere alkyl, lavere alkoksy og/eller lavere alkoylamino, og R<2>betyr lavere alkyl eller cykloalkyl med 5-8 karbonatomer. where R<1>means phenyl, which may be substituted with halogen, lower alkyl, lower alkoxy and/or lower alkylamino, and R<2>means lower alkyl or cycloalkyl with 5-8 carbon atoms.
I vårt norske patentskrift nr. 103.126 er beskrevet en rekke andre freimgangsmåter til fremstilling av de samme forbindelser som fremstilles i henhold til oppfinnelsen.. In our Norwegian patent document no. 103,126, a number of other approaches to the production of the same compounds that are produced according to the invention are described.
Fremgangsmåten ifølge oppfinnelsen karakteriseres ved at et hydroksy-urinstoffderivat med formelen The method according to the invention is characterized in that a hydroxyurea derivative with the formula
hvor R 2 har den ovenfor angitte betydning, omsettes med et sulfin-syrehalogenid med formelen R^-SO-Hal, hvor B?~ har den ovenfor angitte betydning, eller med nevnte sulfinsyre som sådan eller dens alkalimetallsalt, i nærvær av et syrehalogenid, fortrinnsvis et syreklorid. where R 2 has the above-mentioned meaning, is reacted with a sulfinic acid halide of the formula R^-SO-Hal, where B?~ has the above-mentioned meaning, or with said sulfinic acid as such or its alkali metal salt, in the presence of an acid halide, preferably an acid chloride.
På bakgrunn av hva som er kjent på dette spesielle område, er resultatet av fremgangsmåten ifølge oppfinnelsen uventet. Based on what is known in this particular area, the result of the method according to the invention is unexpected.
Det er kjent at omsetningen mellom sulfinylklorider og alkoholer i nærvær av baser fører til sulfinsyreestere (Kirk-Othmer, i Encyclopedia of Chemical Technology, vol. 13, New York 1954, side 310, linje 25 - 28). It is known that the reaction between sulfinyl chlorides and alcohols in the presence of bases leads to sulfinic acid esters (Kirk-Othmer, in Encyclopedia of Chemical Technology, vol. 13, New York 1954, page 310, lines 25-28).
Dessto mer overraskende var det at man ved omsetningen mellom sulfin-syrehalogenider og hydroksy-urinstoffer ikke fikk de i henhold til Kirk-Othmer ventede forbindelser med formelen It was all the more surprising that in the reaction between sulfinic acid halides and hydroxyureas, the compounds with the formula expected according to Kirk-Othmer were not obtained
men derimot sulfonyl-urinstoffer med formelen Det fant således ikke sted en utbytting av Cl med but, on the other hand, sulphonylureas with the formula Thus, no replacement of Cl with
men derimot en omleiring som i virkeligheten but on the other hand a relocation as in reality
representerer en oksydasjon fra sulfin til sulfon. represents an oxidation from sulfine to sulfone.
Når fremgangsmåten utføres i nærvær av et syrehalogenid, foretrekkes å anvende et syreklorid fordi dette er det billigste av syrehalogenidene. When the process is carried out in the presence of an acid halide, it is preferred to use an acid chloride because this is the cheapest of the acid halides.
Eksempler på egnede syreklorider er tionylklorid, fosgen-klorsulfonsyre, acetylklorid og benzoylklorid, og blant disse syreklorider foretrekkes det i henhold til oppfinnelsen særlig tionylklorid, da dette gir de høyeste utbytter. Examples of suitable acid chlorides are thionyl chloride, phosgene-chlorosulfonic acid, acetyl chloride and benzoyl chloride, and among these acid chlorides, thionyl chloride is particularly preferred according to the invention, as this gives the highest yields.
Selv om reaksjonen kan utføres med de reagerende bestanddeler oppløst i et organisk oppløsningsmiddel, så som dioksan, benzen eller toluen, foretrekkes i henhold til oppfinnelsen at reaksjonen finner sted i et suspenderende medium for de reagerende bestanddeler (hydroksy-urinstoffderivatet og sulfin- syreforbindelsen). Egnede suspenderingsmedier. er flytende hydrokarboner, særlig petroleter. Although the reaction can be carried out with the reacting components dissolved in an organic solvent, such as dioxane, benzene or toluene, it is preferred according to the invention that the reaction takes place in a suspending medium for the reacting components (the hydroxyurea derivative and the sulfinic acid compound). Suitable suspending media. are liquid hydrocarbons, especially petroleum ether.
De beste resultater oppnåes, når reaksjonen utføres i kokende petroleter (kokepunkt ca. 50°C) i nærvær av tionyl- The best results are obtained when the reaction is carried out in boiling petroleum ether (boiling point approx. 50°C) in the presence of thionyl
klorid. Når man anvender petroleter, vil en reaksjonstemperatur under ca. 50°C i alminnelighet medføre lavere utbytte. chloride. When petroleum ether is used, a reaction temperature below approx. 50°C generally result in a lower yield.
Under reaksjonen foretrekkes å holde partiklene av de reagerende bestanddeler adskilt og i bevegelse, f.eks. ved hjelp av en forsiktig laminær omrøring. During the reaction, it is preferred to keep the particles of the reacting components separate and in motion, e.g. using gentle laminar stirring.
Forbindelsene som fremstilles i henhold til oppfinnelsen, er i besittelse av anti-diabetisk aktivitet ved oral administrering. The compounds produced according to the invention possess anti-diabetic activity when administered orally.
De følgende eksempler illustrerer fremgangsmåten: EKSEMPEL 1 The following examples illustrate the procedure: EXAMPLE 1
1-(n-butyl)-3-hydroksyurinstoff (13,2 g, 100 mmol) suspenderes i 150 ml petroleter (kokepunkt 50°C), og p-toluen-sulfinylklorid (19,5 g, 110 mmol) oppløst i petroleter (50 ml) tilsettes i løpet av 15 minutter. Reaksjonsblandingen oppvarmes under tilbakeløpskjøling med forsiktig omrøring i 2 timer, 1-(n-butyl)-3-hydroxyurea (13.2 g, 100 mmol) is suspended in 150 ml of petroleum ether (boiling point 50°C), and p-toluenesulfinyl chloride (19.5 g, 110 mmol) dissolved in petroleum ether (50 ml) is added over 15 minutes. The reaction mixture is heated under reflux with gentle stirring for 2 hours,
avkjøles og ekstraheres med 2 N natriumhydroksydoppløsning cool and extract with 2 N sodium hydroxide solution
(100 ml). (100ml).
Den vandige fase isoleres, ekstraheres med eter (2 x 50 ml), og ansyres med saltsyre til pH = 4. Det utfelte materiale frafiltreres, vaskes omhyggelig med vann og tørres. Krystalli-sering fra etanol gir 1-(n-butyl)-3-(p-toluensulfonyl)urinstoff The aqueous phase is isolated, extracted with ether (2 x 50 ml), and acidified with hydrochloric acid to pH = 4. The precipitated material is filtered off, washed carefully with water and dried. Crystallization from ethanol gives 1-(n-butyl)-3-(p-toluenesulfonyl)urea
(3 g).Krystallene smelter ved 125-126°C. (3 g). The crystals melt at 125-126°C.
EKSEMPEL II EXAMPLE II
1-(n-butyl)-3-hydroksyurinstoff (26,4 g, 200 mmol) og vannfritt natrium-p-toluensulfinat (26,7 g, 150 mmol) blandes under kraftig omrøring i 350 ml petroleter (kokepunkt 50°C). Omrøringshastigheten reduseres til forsiktig omrøring, og i 1-(n-butyl)-3-hydroxyurea (26.4 g, 200 mmol) and anhydrous sodium p-toluenesulfinate (26.7 g, 150 mmol) are mixed with vigorous stirring in 350 ml of petroleum ether (boiling point 50°C) . The stirring speed is reduced to gentle stirring, and i
løpet av 15 minutter tilsettes tionylklorid (23,6 g, 200 mmol) oppløst i 200 ml petroleter. in the course of 15 minutes, thionyl chloride (23.6 g, 200 mmol) dissolved in 200 ml of petroleum ether is added.
Reaksjonsblandingen kokes under tilbakeløpskjøling i The reaction mixture is boiled under reflux i
2-3 timer med kontinuerlig omrøring, avkjøles og ekstraheres med 2 N natriumhydroksyd (150 ml). 2-3 hours with continuous stirring, cool and extract with 2 N sodium hydroxide (150 ml).
Den vandige fase ekstraheres med eter (2 x 50 ml) og ansyres med konsentrert saltsyre til pH=4, og man får således et bunnfall av 1-(n-butyl)-3-(p-toluensulfonyl)urinstoff som krystalliseres. Eftér omkrystallisering fra etanol-vann har produktet (utbytte 21 g) et smeltepunkt på 125-126°C. The aqueous phase is extracted with ether (2 x 50 ml) and acidified with concentrated hydrochloric acid to pH=4, and a precipitate of 1-(n-butyl)-3-(p-toluenesulfonyl)urea is thus obtained which is crystallized. After recrystallization from ethanol-water, the product (yield 21 g) has a melting point of 125-126°C.
EKSEMPEL III EXAMPLE III
1-(n-butyl)-3-hydroksyurinstoff (53 g, 0,4 mol) og p-toluensulfinsyre (47 g,0,3 mol) blandes under kraftig omrøring i petroleter (500 ml, kokepunkt ca. 50°C). 1-(n-butyl)-3-hydroxyurea (53 g, 0.4 mol) and p-toluenesulfinic acid (47 g, 0.3 mol) are mixed with vigorous stirring in petroleum ether (500 ml, boiling point approx. 50°C) .
Røreren reguleres til moderat hastighet, og i løpet av The stirrer is regulated to a moderate speed, and during
15 minutter settes en oppløsning av tionylklorid (47 g, 0,4 mol) 15 minutes, a solution of thionyl chloride (47 g, 0.4 mol) is placed
i petroleter (300 ml) til blandingen. in petroleum ether (300 ml) to the mixture.
Reaksjonsblandingen oppvarmes under tilbakeløpskjøling The reaction mixture is heated under reflux
med forsiktig omrøring i 2-3 timer inntil alt det faste materiale er forsvunnet og en væskefase nummer to er dannet. with gentle stirring for 2-3 hours until all the solid material has disappeared and a second liquid phase has formed.
Blandingen avkjøles og omrøres kraftig i 30 minutter The mixture is cooled and stirred vigorously for 30 minutes
med 2N natriumhydroksyd (350 ml). Det vandige lag isoleres, ekstraheres med eter (2 x 100 ml) og befries for eter i vakuum. with 2N sodium hydroxide (350 ml). The aqueous layer is isolated, extracted with ether (2 x 100 ml) and freed from ether in vacuo.
Under ansyring til pH=4 ved langsom tilsetning av During acidification to pH=4 by slow addition of
konsentrert saltsyre (ca. 75 ml), utfelles sulfonylurinstoffet. Det krystallinske materiale vaskes med vann og lufttørres. concentrated hydrochloric acid (approx. 75 ml), the sulphonylurea is precipitated. The crystalline material is washed with water and air dried.
Omkrystallisering, først fra etanol-vann, og derefter Recrystallization, first from ethanol-water, and then
fra etylacetat, gir rent l-(n-butyl)-3-(p-toluen-sulfonyl)urin- from ethyl acetate, gives pure l-(n-butyl)-3-(p-toluene-sulfonyl)urin-
stoff (40 g). Smeltepunktet er 125,5 til 126,5°C. fabric (40 g). The melting point is 125.5 to 126.5°C.
EKSEMPEL IV EXAMPLE IV
Ved å gjenta fremgangsmåten ifølge eksempel III, men By repeating the procedure according to example III, but
ved å erstatte 1-(n-butyl)-3-hydroksyurinstoff med det passende 1-alkyl(cykloalkyl)-3-hydroksyurinstoff, får man de følgende forbindelser: by replacing 1-(n-butyl)-3-hydroxyurea with the appropriate 1-alkyl(cycloalkyl)-3-hydroxyurea, the following compounds are obtained:
l-cykloheksyl-3-(p-toluensulfonyl)urinstoff, sm.p.: 1-cyclohexyl-3-(p-toluenesulfonyl)urea, m.p.:
171-173°C 171-173°C
l-isopropyl-3-(p-toluensulfonyl)urinstoff, sm.p.: l-isopropyl-3-(p-toluenesulfonyl)urea, m.p.:
144-145°C 144-145°C
EKSEMPEL V EXAMPLE V
1-(n-butyl)-3-hydroksyu rinstoff (26,4 g, 200 mmol) og benzen-sulfinsyre (21,3 g, 150mmol) blandes ved effektiv om- 1-(n-butyl)-3-hydroxyurea (26.4 g, 200 mmol) and benzenesulfinic acid (21.3 g, 150 mmol) are mixed by effective re-
røring i petroleter (250 ml). Tionylklorid (23,6 g, 200 mmol) stirring in petroleum ether (250 ml). Thionyl chloride (23.6 g, 200 mmol)
oppløst i petroleter (150 ml) tilsettes under moderat omrøring dissolved in petroleum ether (150 ml) is added with moderate stirring
i løpet av 15 minutter, og blandingen kokes under tilbakeløps- during 15 minutes, and the mixture is boiled under reflux
kjøling i 2-3 timer. cooling for 2-3 hours.
Ekstraheringen med 2 N natriumhydroksyd (150 ml) The extraction with 2 N sodium hydroxide (150 ml)
utføres som beskrevet i eksempel III ovenfor, den vandige fase isoleres, ekstraheres med eter og ansyres til pH=4. 1-(n-butyl)-3-benzensulfonylurinstoff, som utfelles som et krystallinsk materiale,'omkrystalliseres fra étanolvann, fulgt av etylacetat. Utbyttet er 15 g, og materialet smelter ved 128-129°C. is carried out as described in example III above, the aqueous phase is isolated, extracted with ether and acidified to pH=4. 1-(n-butyl)-3-benzenesulfonylurea, which precipitates as a crystalline material, is recrystallized from ethanol-water, followed by ethyl acetate. The yield is 15 g, and the material melts at 128-129°C.
EKSEMPEL VI EXAMPLE VI
Ved å følge samme fremgangsmåte som i eksempel V, under anvendelse av det passende 1-alkyl (cykloalkyl)-3-hydroksyurinstof f, By following the same procedure as in Example V, using the appropriate 1-alkyl (cycloalkyl)-3-hydroxyurea f,
får man: you get:
l-cykloheksyl-3-benzensulfonylurinstoff, sm.p.: l-cyclohexyl-3-benzenesulfonylurea, m.p.:
188-189°C 188-189°C
1-(n-propyl)-3-benzensulfonylurinstoff, sm.p. 1-(n-propyl)-3-benzenesulfonylurea, m.p.
115-116°C 115-116°C
EKSEMPEL VII EXAMPLE VII
Tionylklorid (23,6 g, 200 mmol) oppløst i petroleter Thionyl chloride (23.6 g, 200 mmol) dissolved in petroleum ether
(150 ml) settes under moderat omrøring til en suspensjon av 1-(n-propyl)-3-hydroksyurinstoff (23,6 g, 200 mmol) og p-klor-benzensulfinsyre (26,4 g, 150 mmol). Reaksjonsblandingen kokes under tilbakeløpskjøling i 2-3 timer. (150 mL) is added with moderate stirring to a suspension of 1-(n-propyl)-3-hydroxyurea (23.6 g, 200 mmol) and p-chlorobenzenesulfinic acid (26.4 g, 150 mmol). The reaction mixture is boiled under reflux for 2-3 hours.
Produktet, 1-(n-propyl)-3-(p-klorbenzensulfonyl)urin- The product, 1-(n-propyl)-3-(p-chlorobenzenesulfonyl)urin-
stoff, bearbeides som beskrevet i eksempel III ovenfor og om-krystalliseres, først fra etanol-vann, derefter fra etylacetat. substance, is processed as described in example III above and recrystallized, first from ethanol-water, then from ethyl acetate.
Den rene forbindelse (utbytte: 17,8 g) smelter ved 125-127°C. The pure compound (yield: 17.8 g) melts at 125-127°C.
EKSEMPEL VIII EXAMPLE VIII
Ved å gjenta fremgangsmåten fra eksempel VII, under anvendelse av det passende 1-alkyl(cykloalkyl)-3-hydroksyurin- By repeating the procedure of Example VII, using the appropriate 1-alkyl(cycloalkyl)-3-hydroxyurine-
stoff, får man: fabric, you get:
1-(n-butyl)-3-(p-klorbenzensulfonyl)urinstoff, sm.p.: 113-115°C l-cykloheksyl-3-(p-klorbenzensulfonyl)urinstoff, sm.p.: 156-158°C 1-(n-butyl)-3-(p-chlorobenzenesulfonyl)urea, m.p.: 113-115°C 1-cyclohexyl-3-(p-chlorobenzenesulfonyl)urea, m.p.: 156-158°C
EKSEMPEL IX EXAMPLE IX
Reaksjonen mellom l-cykloheksyl-3-hydroksyurinstoff The reaction between l-cyclohexyl-3-hydroxyurea
(25,3 g, 160 mmol), p-metoksybenzensulfinsyre (22,3 g, 130 mmol) (25.3 g, 160 mmol), p-methoxybenzenesulfinic acid (22.3 g, 130 mmol)
og tionylklorid (18,9 g, 160 mmol) i petroleter (400 ml) utføres som beskrevet i eksemplene ovenfor. Reaksjonsblandingen omrøres kraftig med 2 N natriumhydroksyd (150 ml) i 30 minutter. Ansyring av den vandige fase efter de vanlige ekstraheringer med eter, and thionyl chloride (18.9 g, 160 mmol) in petroleum ether (400 mL) is carried out as described in the above examples. The reaction mixture is stirred vigorously with 2 N sodium hydroxide (150 ml) for 30 minutes. Acidification of the aqueous phase after the usual extractions with ether,
gir et bunnfall av l-cykloheksyl-3-(p-metoksybenzensulfonyl) gives a precipitate of l-cyclohexyl-3-(p-methoxybenzenesulfonyl)
urinstoff, som renses ved omkrystallisering fra etylacetat. Det erholdte utbytte er 20 g av en forbindelse som smelter ved 181-182°C. urea, which is purified by recrystallization from ethyl acetate. The yield obtained is 20 g of a compound which melts at 181-182°C.
EKSEMPEL X EXAMPLE X
Ved en analog fremgangsmåte fremstilles de følgende for- By an analogous method, the following products are produced
bindelser: bonds:
1-(n-butyl)-3-(p-metoksybenzensulfonyl)urinstoff, sm.p.: 1-(n-butyl)-3-(p-methoxybenzenesulfonyl)urea, m.p.:
116-118°C 116-118°C
1-(n-propyl)-3-(p-metoksybenzensulfonyl)urinstoff, sm.p.: 1-(n-propyl)-3-(p-methoxybenzenesulfonyl)urea, m.p.:
119-212°C. 119-212°C.
EKSEMPEL XI EXAMPLE XI
Omsetningen mellom 1-(n-propyl-3-hydroksyurinstoff The turnover between 1-(n-propyl-3-hydroxyurea).
(23,5 g, 200 mmol), p-acetamidobenzensulfinsyre (30 g, 150 mmol) (23.5 g, 200 mmol), p-acetamidobenzenesulfinic acid (30 g, 150 mmol)
og tionylklorid (23,5 g, 200 mmol) i petroleter (400 ml) utføres på vanlig måte. Efter kokning under tilbakeløpskjøling i 2-3 and thionyl chloride (23.5 g, 200 mmol) in petroleum ether (400 mL) is carried out in the usual manner. After boiling under reflux cooling for 2-3
timer med moderat omrøring avkjøles reaksjonsblandingen, ekstra- hours with moderate stirring, the reaction mixture is cooled, extra-
heres med 2 N natriumhydroksy (150 ml) som beskrevet i eksempel IX, og ekstrakten ansyres til pH=4. Det krystallinske bunnfall is diluted with 2 N sodium hydroxy (150 ml) as described in example IX, and the extract is acidified to pH=4. The crystalline precipitate
renses ved omkrystallisering fra etanol-vann, og man får 1-(n-propyl)-3-(p-acetamidobenzensulfonyl)urinstoff (8,0 g) som smelter ved 197-198°C. is purified by recrystallization from ethanol-water, and 1-(n-propyl)-3-(p-acetamidobenzenesulfonyl)urea (8.0 g) is obtained which melts at 197-198°C.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1375466 | 1966-03-29 | ||
GB33463/66A GB1185013A (en) | 1966-03-29 | 1966-07-26 | Preparation of Aryl-Sulphonyl Ureas |
Publications (1)
Publication Number | Publication Date |
---|---|
NO122700B true NO122700B (en) | 1971-08-02 |
Family
ID=26249980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO167411A NO122700B (en) | 1966-03-29 | 1967-03-21 |
Country Status (11)
Country | Link |
---|---|
AT (1) | AT278028B (en) |
CH (1) | CH484881A (en) |
DE (1) | DE1618731A1 (en) |
DK (1) | DK117346B (en) |
ES (1) | ES338563A1 (en) |
FI (1) | FI45754C (en) |
GB (1) | GB1185013A (en) |
IS (1) | IS810B6 (en) |
NL (1) | NL6704487A (en) |
NO (1) | NO122700B (en) |
SE (1) | SE342615B (en) |
-
1966
- 1966-07-26 GB GB33463/66A patent/GB1185013A/en not_active Expired
-
1967
- 1967-03-15 IS IS1629A patent/IS810B6/en unknown
- 1967-03-20 CH CH395667A patent/CH484881A/en not_active IP Right Cessation
- 1967-03-21 NO NO167411A patent/NO122700B/no unknown
- 1967-03-21 DE DE19671618731 patent/DE1618731A1/en active Pending
- 1967-03-21 AT AT270167A patent/AT278028B/en not_active IP Right Cessation
- 1967-03-22 DK DK149867AA patent/DK117346B/en unknown
- 1967-03-22 FI FI670860A patent/FI45754C/en active
- 1967-03-28 SE SE4237/67A patent/SE342615B/xx unknown
- 1967-03-28 ES ES338563A patent/ES338563A1/en not_active Expired
- 1967-03-29 NL NL6704487A patent/NL6704487A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CH484881A (en) | 1970-01-31 |
FI45754B (en) | 1972-05-31 |
AT278028B (en) | 1970-01-26 |
NL6704487A (en) | 1967-10-02 |
IS1629A7 (en) | 1967-09-30 |
ES338563A1 (en) | 1969-10-16 |
FI45754C (en) | 1972-09-11 |
DE1618731A1 (en) | 1971-02-18 |
IS810B6 (en) | 1972-05-02 |
GB1185013A (en) | 1970-03-18 |
SE342615B (en) | 1972-02-14 |
DK117346B (en) | 1970-04-20 |
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