CH264455A - Process for the preparation of 3-cyclohexyl-3- (B-diethylamino-ethyl) -benzofuran-2-one. - Google Patents
Process for the preparation of 3-cyclohexyl-3- (B-diethylamino-ethyl) -benzofuran-2-one.Info
- Publication number
- CH264455A CH264455A CH264455DA CH264455A CH 264455 A CH264455 A CH 264455A CH 264455D A CH264455D A CH 264455DA CH 264455 A CH264455 A CH 264455A
- Authority
- CH
- Switzerland
- Prior art keywords
- cyclohexyl
- ethyl
- diethylamino
- methoxy
- treated
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 9
- 238000002360 preparation method Methods 0.000 title description 3
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 150000003388 sodium compounds Chemical class 0.000 claims description 4
- 150000001339 alkali metal compounds Chemical class 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- -1 3-cyclohexyl Chemical group 0.000 claims 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 2
- 230000005494 condensation Effects 0.000 claims 2
- 238000009833 condensation Methods 0.000 claims 2
- DWJKILXTMUGXOU-UHFFFAOYSA-N 2-(2-methoxyphenyl)acetonitrile Chemical compound COC1=CC=CC=C1CC#N DWJKILXTMUGXOU-UHFFFAOYSA-N 0.000 claims 1
- YMDNODNLFSHHCV-UHFFFAOYSA-N 2-chloro-n,n-diethylethanamine Chemical compound CCN(CC)CCCl YMDNODNLFSHHCV-UHFFFAOYSA-N 0.000 claims 1
- IXMOCPGODMUTBG-UHFFFAOYSA-N 2-cyclohexyl-2-(2-methoxyphenyl)acetonitrile Chemical compound COC1=CC=CC=C1C(C#N)C1CCCCC1 IXMOCPGODMUTBG-UHFFFAOYSA-N 0.000 claims 1
- AQNQQHJNRPDOQV-UHFFFAOYSA-N bromocyclohexane Chemical compound BrC1CCCCC1 AQNQQHJNRPDOQV-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 12
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 239000003513 alkali Substances 0.000 description 4
- 239000002585 base Substances 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 3
- BMYNFMYTOJXKLE-UHFFFAOYSA-N 3-azaniumyl-2-hydroxypropanoate Chemical compound NCC(O)C(O)=O BMYNFMYTOJXKLE-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VKPPFDPXZWFDFA-UHFFFAOYSA-N 2-chloroethanamine Chemical compound NCCCl VKPPFDPXZWFDFA-UHFFFAOYSA-N 0.000 description 1
- 125000002927 2-methoxybenzyl group Chemical group [H]C1=C([H])C([H])=C(C(OC([H])([H])[H])=C1[H])C([H])([H])* 0.000 description 1
- ACZGCWSMSTYWDQ-UHFFFAOYSA-N 3h-1-benzofuran-2-one Chemical compound C1=CC=C2OC(=O)CC2=C1 ACZGCWSMSTYWDQ-UHFFFAOYSA-N 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- PHSPJQZRQAJPPF-UHFFFAOYSA-N N-alpha-Methylhistamine Chemical compound CNCCC1=CN=CN1 PHSPJQZRQAJPPF-UHFFFAOYSA-N 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 229940124575 antispasmodic agent Drugs 0.000 description 1
- 239000000812 cholinergic antagonist Substances 0.000 description 1
- YWEUIGNSBFLMFL-UHFFFAOYSA-N diphosphonate Chemical compound O=P(=O)OP(=O)=O YWEUIGNSBFLMFL-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- DLYUQMMRRRQYAE-UHFFFAOYSA-N phosphorus pentoxide Inorganic materials O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/78—Benzo [b] furans; Hydrogenated benzo [b] furans
- C07D307/82—Benzo [b] furans; Hydrogenated benzo [b] furans 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 carbon atoms of the hetero ring
- C07D307/83—Oxygen atoms
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)
- Furan Compounds (AREA)
Description
Verfahren zur Herstellung von 3-Cyclohexyl-3-(@-diäthylamino-äthyl).benzofuran-2-on. Gegenstand vorliegender lirfindiing ist. ein Verfahren zur Herstellung- von 3-C'yclo- hexyl-3- <I>(i3</I><B>-</B> diäth-,#laiiiitio <B>-</B> äthyl) -ben7of uran- ,
Q -on der Formel
EMI0001.0016
Das Verfahren ist dadurch -ekennzeicli- riet, dass man eine Alkalimetallverbindung des 2-Methoxy-benzy lcyaiiids mit einem C#v= clohexylhalogenid behandelt, das erhaltene a-Cycloliexyl-2-nietlioxy-benzyleyanid in ein Alkalimetall-Derivat überführt, letzteres mit einer den f-Diäthylamino-äthyl-Rest abgeben den Verbindung umsetzt,
das entstandene a - Cyclohexyl - a - (ss'-diäthylamino-äthyl) -2 inethoxy-benzylcyanid mit Bromwasserstoff- säure verseift und anschliessend die erhaltene Carbonsäure mit einem Kondensationsmittel behandelt. Der Endstoff kann dadurch iso liert werden, dass das Reaktionsgemisch alka lisch gestellt und die Base mit Äther extra liiert wird. Nach Entfernung des Äthers kann das Produkt unter Vakuum destilliert wer den.
Er weist einen Siedepunkt von 175 bis 176" C bei 3 mm Druck auf; 1125 D = 1.,5281.
Die Ausbeute beträgt 21,5 g. <I>Beispiel:</I> Einer Suspension der Natriuniverbindung von 2-llethoxy -benzyleyanid, welche dureh dreistündiges Behandeln im Rückfluss von 12,5 o des Nitrils finit 12,1 Natriumamid in <B>800</B> ein'I Benzol hergestellt. wurde, werden 19,0 g Cyclohexy 1-bromid zugefügt.
Die 1Ii- sehung wird am Rückflusskühler behandelt und dann 20 Stunden gerührt. Die Reaktions- misehung wird mit Wasser gewaschen und hierauf konzentriert. Der ölige Rückstand destilliert bei 155 bis 15711 bei 3 mm. Auf diese Weise werden -13 - a-Cyclohez@-l ?- niethoxy-benzyleyanid (65e7 des theoreti- sehen Wertes) erhalten; n2 = 1,5320.
Durch Behandeln von 30; a-Cyeloliexyl- '?-methosy-lieiizyleyanid mit 5,9 g Natrium amid in 100 ein:; Benzol während drei Stun den wird die Natriumverbindung gebildet. Der klaren Lösung werden 20,3 g fl-Diäthyl,- i amino -äthyl-chlorid zugefügt und das CTe- misch am Rüekfhzss unter Rühren während 20 Stunden erhitzt.
Die Benzollösung wird hierauf mehrere Male mit Wasser gewaschen und dann mit Säure extrahiert.. Dem sauren Extrakt wird Alkali zugesetzt und dann die Base mit Äther ausgezogen. Schliesslich wird der Äther ent fernt und der ölige Rückstand destilliert. Auf diese Weise werden 32 g a-Cyelohexyl-a-(ss'- diäthylamino-äthyl) -2-methoxy-benzyleyanid (75 % des theoretischen Wertes) erhalten; Siedepunkt 169 bis 170 C bei 2 mm; nD = 1,5182.
Eine Lösung von 30 g a-Cyclohexyl-a-(,8'- diäthylamino-äthyl) -,2-methoxy-benzyleyanid in 180 cm3 18%iger Bromwasserstoffsäure wird während 48 Stunden am Rückfluss be handelt. Die Lösung wird dann im Dampfbad bis zur Trockne konzentriert und danach mit einem Überschuss von Thionylchlorid behan delt. Nach der Entfernung von überflüssigem Agens im Dampfbad werden Eiswasser und Äther zugefügt und die Mischung so lange gerührt, bis alles in Lösung gegangen ist.
Der wässerige Teil wird alkalisch gestellt und die Base mit Äther extrahiert, konzentriert und destilliert. Das 3-Cyclohexyl-3-(,B-diäthyl- amino-äthyl)-benzofuran-2-on siedet bei 175 bis 176 bei 3 min; nD = 1,5284. Die Aus beute beträgt 21,5 g oder 755,v der Theorie.
An Stelle von Natriumamid können auch andere Alkaliverbindungen, z. B. andere Alkaliamide oder 'Alkalihydride, ferner auch Alkalimetalle verwendet werden. Ferner können ausser Thionylchlorid noch andere Kondensationsmittel verwendet wer den, wie z. B. Phosphorpentoxyd und Phos- phortribromid. Das Thionylchlorid hat den Vorteil; dass es durch Destillation aus der Reaktionsmischung entfernt werden kann.
Der nach dem erfindungsgemässen Ver fahren erhaltene Endstoff ist eiri wirksames krampflinderndes Mittel, insbesondere zur Behandlung von Krämpfen weicher Muskeln.
Process for the preparation of 3-cyclohexyl-3 - (@ - diethylamino-ethyl) .benzofuran-2-one. The subject of this lirfindiing is. a process for the preparation of 3-cyclohexyl-3- <I>(i3</I> <B> - </B> diet-, # laiiiitio <B> - </B> ethyl) -ben7of uranium,
Q -on the formula
EMI0001.0016
The process is characterized by treating an alkali metal compound of 2-methoxy-benzy lcyaiiids with a C # v = clohexyl halide, converting the α-cycloliexyl-2-nietlioxy-benzyl anide into an alkali metal derivative, the latter with a give up the f-diethylamino-ethyl residue which converts the compound,
the a - cyclohexyl - a - (ss'-diethylamino-ethyl) -2 inethoxy-benzyl cyanide formed is saponified with hydrobromic acid and the carboxylic acid obtained is then treated with a condensing agent. The end product can be isolated by making the reaction mixture alkaline and extracting the base with ether. After removing the ether, the product can be distilled under vacuum who the.
It has a boiling point of 175 to 176 "C at 3 mm pressure; 1125 D = 1., 5281.
The yield is 21.5 g. <I> Example: </I> A suspension of the sodium compound of 2-llethoxybenzylyanide, which by treating for three hours under reflux of 12.5% of the nitrile finite 12.1 sodium amide in <B> 800 </B> Benzene produced. 19.0 g of cyclohexy 1-bromide are added.
The 1Iisehung is treated on the reflux condenser and then stirred for 20 hours. The reaction mixture is washed with water and then concentrated. The oily residue distills at 155 to 15711 at 3 mm. In this way, -13 - a-Cyclohez @ -l? - niethoxy-benzyl anide (65e7 of the theoretical value) are obtained; n2 = 1.5320.
By treating 30; α-Cyeloliexyl- '? -methosy-lieiizyleyanid with 5.9 g sodium amide in 100 :; Benzene forms the sodium compound for three hours. 20.3 g of a1-diethyl, amino-ethyl chloride are added to the clear solution and the C-mixture is heated on the Rüekfhzss with stirring for 20 hours.
The benzene solution is then washed several times with water and then extracted with acid. Alkali is added to the acidic extract and the base is then extracted with ether. Finally the ether is removed and the oily residue is distilled. In this way, 32 g of a-cyelohexyl-a- (ss'-diethylamino-ethyl) -2-methoxy-benzyl anide (75% of the theoretical value) are obtained; Boiling point 169 to 170 C at 2 mm; nD = 1.5182.
A solution of 30 g of a-cyclohexyl-a - (, 8'-diethylamino-ethyl) -, 2-methoxy-benzyl anide in 180 cm3 of 18% hydrobromic acid is refluxed for 48 hours. The solution is then concentrated to dryness in a steam bath and then treated with an excess of thionyl chloride. After removing superfluous agent in the steam bath, ice water and ether are added and the mixture is stirred until everything has dissolved.
The aqueous part is made alkaline and the base extracted with ether, concentrated and distilled. The 3-cyclohexyl-3 - (, B-diethylamino-ethyl) -benzofuran-2-one boils at 175 to 176 for 3 min; nD = 1.5284. The yield is 21.5 g or 755.v of theory.
Instead of sodium amide, other alkali compounds, e.g. B. other alkali amides or 'alkali hydrides, also alkali metals can be used. Furthermore, other condensing agents other than thionyl chloride can be used who the such. B. phosphorus pentoxide and phosphorus tribromide. The thionyl chloride has the advantage; that it can be removed from the reaction mixture by distillation.
The end product obtained by the inventive method is an effective antispasmodic agent, in particular for treating cramps in soft muscles.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US264455XA | 1945-03-09 | 1945-03-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH264455A true CH264455A (en) | 1949-10-15 |
Family
ID=21831856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH264455D CH264455A (en) | 1945-03-09 | 1946-03-08 | Process for the preparation of 3-cyclohexyl-3- (B-diethylamino-ethyl) -benzofuran-2-one. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH264455A (en) |
-
1946
- 1946-03-08 CH CH264455D patent/CH264455A/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2944295C2 (en) | Process for the preparation of racemic p-hydroxy mandelic acid | |
| DE1963991B2 (en) | Process for the preparation of a derivative of L-3,4-dihydroxyphenylalanine | |
| DE894118C (en) | Process for the preparation of ªªª-diphenyl-ethylamines disubstituted on the nitrogen | |
| DE741156C (en) | Process for the production of succinimide | |
| DE744877C (en) | Process for the preparation of acetone cyanohydrin | |
| DE819692C (en) | Process for the preparation of 4-amino-2,6-dialkyl- or -diaralkylpyrimidines | |
| DE1927528B2 (en) | PROCESS FOR THE PRODUCTION OF ALPHAETHINYLAMINES | |
| DE856435C (en) | Process for the preparation of cyclohexenylsuccinic acid | |
| DE732896C (en) | Process for the production of laevulinic acid | |
| AT230897B (en) | Process for the preparation of the new 1,5-diethyl-5-Δ <1> -cyclo-pentenylbarbituric acid | |
| AT136381B (en) | Process for the preparation of crotonaldehyde. | |
| DE641639C (en) | Process for the preparation of 1-ascorbic acid | |
| DE2130110A1 (en) | Process for the production of cyanoacetic acid | |
| DE653073C (en) | Process for the preparation of alkylaminoalkyl ethers of apoquinine | |
| AT227254B (en) | Process for the preparation of 2, 3, 6-trichlorobenzonitrile and 2, 3, 6-trichlorobenzoic acid | |
| AT157582B (en) | Process for the preparation of l-ascorbic acid. | |
| AT242120B (en) | Process for the preparation of 1-phenyl-1- (o-chlorophenyl) -3-dimethylaminopropanol- (1) | |
| CH385832A (en) | Process for the preparation of cyclic ketones | |
| DE1254141B (en) | Process for the preparation of alpha-chlorine or alpha-bromo derivatives of saturated aliphatic mono- or dicarboxylic acids | |
| DE1290124B (en) | Process for the preparation of lactones of saturated aliphatic delta-hydroxymono- or -dicarboxylic acids with 6 to 20 carbon atoms | |
| CH162632A (en) | Process for the preparation of 3-ethoxy-4-oxy-benzaldehyde. | |
| DE1034640B (en) | Process for the production of orotic acid | |
| CH260482A (en) | Process for the preparation of an aldehyde from B-ionone. | |
| CH125473A (en) | Process for the preparation of 1-oxo-2-methyl-3-phenyl-propene-2. | |
| DE1008305B (en) | Process for the preparation of 1-methylamino-1-phenyl-2-methyl-butane |