DE1234712B - Process for the preparation of low molecular weight 8- [2, 6, 6-trimethylcyclohexen- (1) -yl] -2, 6-dimethyl-1, 5, 7- or -2, 5, 7-octatrien-4-one- 1-carboxylic acid alkyl esters - Google Patents
Process for the preparation of low molecular weight 8- [2, 6, 6-trimethylcyclohexen- (1) -yl] -2, 6-dimethyl-1, 5, 7- or -2, 5, 7-octatrien-4-one- 1-carboxylic acid alkyl estersInfo
- Publication number
- DE1234712B DE1234712B DEF43049A DEF0043049A DE1234712B DE 1234712 B DE1234712 B DE 1234712B DE F43049 A DEF43049 A DE F43049A DE F0043049 A DEF0043049 A DE F0043049A DE 1234712 B DE1234712 B DE 1234712B
- Authority
- DE
- Germany
- Prior art keywords
- molecular weight
- low molecular
- carboxylic acid
- dimethyl
- octatrien
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 3
- 238000002360 preparation method Methods 0.000 title description 2
- 239000000203 mixture Substances 0.000 claims description 11
- 150000002148 esters Chemical class 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 238000006772 olefination reaction Methods 0.000 claims description 2
- 101000913968 Ipomoea purpurea Chalcone synthase C Proteins 0.000 claims 1
- 101000907988 Petunia hybrida Chalcone-flavanone isomerase C Proteins 0.000 claims 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 9
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000004821 distillation Methods 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000006227 byproduct Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000006798 ring closing metathesis reaction Methods 0.000 description 3
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 2
- WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 150000001728 carbonyl compounds Chemical class 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 229930002839 ionone Natural products 0.000 description 2
- 150000002499 ionone derivatives Chemical class 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 229910000104 sodium hydride Inorganic materials 0.000 description 2
- 239000012312 sodium hydride Substances 0.000 description 2
- 238000001256 steam distillation Methods 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 1
- -1 2,6-dihydroxy-4-methylbenzene phosphonic acid Chemical compound 0.000 description 1
- ZPSJGADGUYYRKE-UHFFFAOYSA-N 2H-pyran-2-one Chemical compound O=C1C=CC=CO1 ZPSJGADGUYYRKE-UHFFFAOYSA-N 0.000 description 1
- IZIRBWUDWYGRCK-UHFFFAOYSA-N 6-(diethoxyphosphorylmethyl)-4-methylpyran-2-one Chemical compound CCOP(=O)(OCC)CC1=CC(C)=CC(=O)O1 IZIRBWUDWYGRCK-UHFFFAOYSA-N 0.000 description 1
- BMTAFVWTTFSTOG-UHFFFAOYSA-N Butylate Chemical compound CCSC(=O)N(CC(C)C)CC(C)C BMTAFVWTTFSTOG-UHFFFAOYSA-N 0.000 description 1
- 238000006228 Dieckmann condensation reaction Methods 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229930194542 Keto Natural products 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical group [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 125000004093 cyano group Chemical group *C#N 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- GVJHHUAWPYXKBD-UHFFFAOYSA-N d-alpha-tocopherol Natural products OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 125000002587 enol group Chemical group 0.000 description 1
- PUSKHXMZPOMNTQ-UHFFFAOYSA-N ethyl 2,1,3-benzoselenadiazole-5-carboxylate Chemical compound CCOC(=O)C1=CC=C2N=[Se]=NC2=C1 PUSKHXMZPOMNTQ-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- NQBKFULMFQMZBE-UHFFFAOYSA-N n-bz-3-benzanthronylpyrazolanthron Chemical compound C12=CC=CC(C(=O)C=3C4=CC=CC=3)=C2C4=NN1C1=CC=C2C3=C1C1=CC=CC=C1C(=O)C3=CC=C2 NQBKFULMFQMZBE-UHFFFAOYSA-N 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- AQSJGOWTSHOLKH-UHFFFAOYSA-N phosphite(3-) Chemical class [O-]P([O-])[O-] AQSJGOWTSHOLKH-UHFFFAOYSA-N 0.000 description 1
- 150000003008 phosphonic acid esters Chemical class 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- CUQOHAYJWVTKDE-UHFFFAOYSA-N potassium;butan-1-olate Chemical group [K+].CCCC[O-] CUQOHAYJWVTKDE-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- QDRKDTQENPPHOJ-UHFFFAOYSA-N sodium ethoxide Chemical compound [Na+].CC[O-] QDRKDTQENPPHOJ-UHFFFAOYSA-N 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229960001295 tocopherol Drugs 0.000 description 1
- 229930003799 tocopherol Natural products 0.000 description 1
- 235000010384 tocopherol Nutrition 0.000 description 1
- 239000011732 tocopherol Substances 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/199—Acids or hydroxy compounds containing cycloaliphatic rings
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
- C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
- C07F9/4015—Esters of acyclic unsaturated acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
- C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
- C07F9/4056—Esters of arylalkanephosphonic acids
- C07F9/4059—Compounds containing the structure (RY)2P(=X)-(CH2)n-C(=O)-(CH2)m-Ar, (X, Y = O, S, Se; n>=1, m>=0)
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/28—Phosphorus compounds with one or more P—C bonds
- C07F9/38—Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
- C07F9/40—Esters thereof
- C07F9/4003—Esters thereof the acid moiety containing a substituent or a structure which is considered as characteristic
- C07F9/4062—Esters of acids containing the structure -C(=X)-P(=X)(XR)2 or NC-P(=X)(XR)2, (X = O, S, Se)
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/547—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom
- C07F9/655—Heterocyclic compounds, e.g. containing phosphorus as a ring hetero atom having oxygen atoms, with or without sulfur, selenium, or tellurium atoms, as the only ring hetero atoms
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
Description
BUNDESREPUBLIK DEUTSCHLANDFEDERAL REPUBLIC OF GERMANY
DEUTSCHESGERMAN
PATENTAMTPATENT OFFICE
SLEGESCHRIFT 1234712SLEGESCHRIFT 1234712
Int. Cl.:Int. Cl .:
Deutsche Kl.:German class:
Nummer: 1234 712Number: 1234 712
Aktenzeichen: F 43049 IV b/12 οFile number: F 43049 IV b / 12 ο
Anmcldetag: 3. Juni 1964Registration date: June 3, 1964
Ausiegctag: 23. Februar 1967Release date: February 23, 1967
Aus J. Am. Chem. Soc, Bd. 83, 1960, S. 1733, ist bekannt, daß Phosphonsäureester der allgemeinen Formel IFrom J. Am. Chem. Soc, Vol. 83, 1960, p. 1733, it is known that phosphonic acid esters of the general Formula I.
P-CH2X (I)P-CH 2 X (I)
Il οIl ο
worin X einen aktivierenden Rest, wie eine Phenyl-, Cyan- oder Carbalkoxygruppe, bedeutet, mit Carbonylverbindungen zu Olefinen umgesetzt werden können.where X is an activating radical, such as a phenyl, cyano or carbalkoxy group, with carbonyl compounds can be converted to olefins.
Es wurde nun gefunden, daß man niedermolekulare 8 - [2,6,6 - Trimethylcyclohexen - (1) - yl] - 2,6 - dimethyl-1,5,7- bzw. ^,S^-octatrien^-on-l-carbonsäurealkylester der allgemeinen Formel IIIt has now been found that low molecular weight 8 - [2,6,6 - trimethylcyclohexen - (1) - yl] - 2,6 - dimethyl-1,5,7- or ^, S ^ -octatrien ^ -one-l-carboxylic acid alkyl ester of the general formula II
— H3C CH3 - H 3 C CH 3
CH3 CH 3
CH = CH — C = CH —1 CH3 CH = CH-C = CH-1 CH 3
CH3 CH 3
(ID(ID
L C — CH =~ C — CH — COOR L C - CH = ~ C - CH - COOR
in der R einen niedermolekularen Alkylrest bedeutet, dadurch erhält, daß man a,ß- oder /^/-ungesättigte ό - Keto - f - dialkylphosphonocarbonsäureester oder deren Gemische der allgemeinen Formel IIIin which R denotes a low molecular weight alkyl radical, obtained by a, β- or / ^ / - unsaturated ό - keto - f - dialkylphosphonocarboxylic acid esters or mixtures thereof of the general formula III
R1Os
RiO'R 1 Os
RiO '
CH3 CH 3
Ρ—CH2-C-CH-C- CH-COORΡ-CH 2 -C -CH-C-CH-COOR
Il Il ^~Il Il ^ ~
(III)(III)
worin R die obige Bedeutung besitzt und Ri einen niedermolekularen Alkylrest bedeutet, mit Ionon in Gegenwart einer starken Base in einem wasserfreien Lösungsmittel in der für eine durch PO-Gruppen aktivierte Olefinierungsreaktion bekannten Weise umsetzt.where R has the above meaning and Ri is a low molecular weight alkyl radical, with Ionon in Presence of a strong base in an anhydrous solvent in the for one by PO groups activated olefination reaction known manner.
Als Kondensationsmittel können Alkali- und Erdalkaliamide, -alkoholate und -hydride verwendet werden, wie Natriumamid, Natriummethylat, Natriumäthylat, tertiäres Kaliumbutylat oder Natriumhydrid. Alkali and alkaline earth amides, alcoholates and hydrides can be used as condensing agents such as sodium amide, sodium methylate, sodium ethylate, tertiary potassium butylate or sodium hydride.
Verfahren zur Herstellung von niedermolekularen 8-[2,6,6-Trimethylcyclohexen-( 1 )-y I ]-2,6-dimethyl-l,5,7- bzw. -2,5,7-octatrien-4-on-l -carbonsäurealkylesternProcess for the preparation of low molecular weight 8- [2,6,6-trimethylcyclohexen- (1) -y I] -2,6-dimethyl-1,5,7- or -2,5,7-octatrien-4-one-1-carboxylic acid alkyl esters
Anmelder:Applicant:
Farbwerke Hoechst Aktiengesellschaft,Farbwerke Hoechst Aktiengesellschaft,
vormals Meister Lucius & Brüning, Frankfurt/M.formerly Master Lucius & Brüning, Frankfurt / M.
Als Erfinder benannt:Named as inventor:
Dr. Günther Seidl, Frankfurt/M.-Unterliederbach;
Dr. Hans Joachim Bohn, Kelkheim (Taunus);
Dr. Walter Friedrich, Frankfurt/M.-HöchstDr. Günther Seidl, Frankfurt / M.-Unterliederbach; Dr. Hans Joachim Bohn, Kelkheim (Taunus);
Dr. Walter Friedrich, Frankfurt / M.-Höchst
Als Lösungsmittel für die Kondensation kommen wasserfreie organische Lösungsmittel, wie Benzol, Toluol, Xylol, Methanol, Äthanol, tertiäres Butanol, Dimethylformamid, Tetrahydrofuran, Dioxan, GIykoldimethyläther, Chlorbenzol oder deren Gemische, in Frage.The solvents used for the condensation are anhydrous organic solvents such as benzene, Toluene, xylene, methanol, ethanol, tertiary butanol, dimethylformamide, tetrahydrofuran, dioxane, glycol dimethyl ether, Chlorobenzene or mixtures thereof.
Die Kondensation wird zwischen 20 und 12OVC, vorzugsweise zwischen 20 und 9O0C, vorgenommen. Die Reaktionszeit beträgt 1 bis 15 Stunden.The condensation is carried out between 20 and 12O V C, preferably between 20 and 9O 0 C. The reaction time is 1 to 15 hours.
Das Molverhältnis der eingesetzten Komponenten kann in weiten Grenzen variiert werden; vorzugsweise wird die Carbonylverbindung mit einer annähernd äquivalenten Menge des Phosphonoketocarbonsäureesters und einem 10- bis 150%igen Überschuß an Kondensationsmittel umgesetzt. Es ist jedoch auch möglich, das Keton im über- oder Unterschuß (300 bis 30 Molprozent) einzusetzen.The molar ratio of the components used can be varied within wide limits; preferably the carbonyl compound with an approximately equivalent amount of the phosphonoketocarboxylic acid ester and a 10 to 150% excess of condensing agent reacted. However, it is also possible to use the ketone in excess or Use deficiency (300 to 30 mol percent).
Die Reaktion wird vorzugsweise in einer Schutzgasatmosphäre (Stickstoff, Edelgase) vorgenommen; oft ist es auch vorteilhaft, dem Reaktionsgemisch Antioxydantien, wie Hydrochinon oder Tocopherol, zuzusetzen. The reaction is preferably carried out in a protective gas atmosphere (nitrogen, noble gases); often it is also advantageous to add antioxidants such as hydroquinone or tocopherol to the reaction mixture.
Nach Beendigung der Umsetzung wird die Reaktionslösung entweder eingeengt oder bei Verwendung von mit Wasser mischbaren Lösungsmitteln mit Wasser versetzt und das Produkt durch Extraktion mit einem mit Wasser nicht mischbaren Lösungsmittel isoliert. Das nach Einengen der organischen Phase isolierte Reaktionsprodukt kann durch Destillieren oder Chromatographieren gereinigt werden. Bei Verwendung eines Überschusses an Keton kann der Überschuß vor der Reinigung durch Wasserdampfdestillation entfernt werden.After the reaction has ended, the reaction solution is either concentrated or, if used, is used water-miscible solvents are mixed with water and the product is extracted isolated with a water immiscible solvent. That after concentrating the organic phase isolated reaction product can be purified by distillation or chromatography. Using an excess of ketone can be removed from the excess prior to purification by steam distillation removed.
709 510/579709 510/579
Die Ausgangsstoffe der allgemeinen Formel II können durch Umsetzung der entsprechenden αφ- oder ^,»/-ungesättigten Λ-Keto-i-halogencarbonsäureester oder deren Gemische mit Trialkylphosphiten erhalten werden. Als Nebenprodukt entstehen bei dieser Umsetzung stets geringere Mengen (10 bis 40"ii) des cyclischen Phosphonomeilnlpyrons der allgemeinen Formel IYThe starting materials of the general formula II can be obtained by reacting the corresponding αφ- or ^, »/ - unsaturated Λ-keto-i-halocarboxylic acid esters or mixtures thereof with trialkyl phosphites. As a by-product, smaller amounts (10 to 40 "ii) of the cyclic Phosphonomeilnlpyrons of the general formula IY are always formed in this reaction
RiO.
RjORiO.
RjO
/"1IJ J/ " 1 IJ J
Il οIl ο
(IV)(IV)
worin R] die obige Bedeutung besitzt, das jedoch durch Destillation leicht abgetrennt werden kann. Das erzielte Ergebnis ist unerwartet, da aus der Literatur viele Beispiele für die Bevorzugung der zu fünf- und sechsgliedrigen Ringen führenden innermolekularen Ringschlußreaktionen (z. B. Dieckmann-Kondensation) bekannt sind. Man hätte nun erwarten sollen, daß bei Gegenwart von starken Basen der über die Enolform verlaufende Ringschluß zum Pyron der allgemeinen Formel IV bzw. unter Beteiligung der dem Phosphor benachbarten aktiven Methylengruppe zum 2,6-Dihydroxy-4-methylbenzolphosphonsäureester den Vorrang genießen sollte, besonders im Hinblick auf die große Triebkraft solcher Reaktionen beim Entstehen von Produkten mit aromatischem Charakter. Daß ein soJcher Ringschluß tatsächlich ablaufen kann, zeigt schon das Auftreten des Pyrons der allgemeinen Formel IV als Nebenprodukt der Arbusow-Reaktion. Darüber hinaus sind auch aus J. Chem. Soc, 1955, S. 2911, analog verlaufende Ringschlußreaktionen bekannt. Andererseits ist die Carbonylgruppe des /Monons recht reaktionsträge, so daß die Konkurrenzreaktion des innermolekukiren Ringschlusses um so mehr zum Zuge kommen sollte.where R] has the above meaning, but that can be easily separated by distillation. The result obtained is unexpected because from the Literature many examples for the preference of the inner-molecular ring closure reactions leading to five- and six-membered rings (e.g. Dieckmann condensation) are known. One should have expected that in the presence of strong bases, the ring closure proceeding via the enol form to the pyrone of the general formula IV or with the participation of the active ones adjacent to the phosphorus Methylene group to the 2,6-dihydroxy-4-methylbenzene phosphonic acid ester should enjoy priority, especially with regard to the great driving force of such reactions in the creation of products with an aromatic character. This already shows that such a ring closure can actually take place Occurrence of the pyron of the general formula IV as a by-product of the Arbusow reaction. About that also from J. Chem. Soc, 1955, p. 2911, ring closure reactions proceeding analogously are known. On the other hand is the carbonyl group of the / monon quite inert, so that the competitive reaction of the inner-molecular ring closure all the more to the Train should come.
a) Ein Gemisch von 41 g 5-Chlor-2-methylpenten-(l)- und -(2)-2-on-carbonsäureäthylester wird mit 34 |g Triäthylphosphit im ölbad 3 Stunden erhitzt. Bei der Destillation erhält man 43 g 5-Diäthylphosphono-2-methylpenten-(l)-4-on-l-carbonsäureäthylester im Gemisch mit 5-Diäthylphosphono-2-methylpenten-(2)-4-on-1 - carbonsäurearylester als hellgelbes öl vom Siedepunkt 145 bis 147 C)' 0,3 mm Hg. Als Nebenprodukt entstehen 12 g 6-Diäthylphosphonomethyl - 4 - methyl - 2 - pyron vom Siedepunkt 155 bis 165 00,3 mm Hg, das nach einiiger Zeit erstarrt und dann bei 41 bis 42 C schmilzt.a) A mixture of 41 g of 5-chloro-2-methylpentene- (1) - and - (2) -2-one-carboxylic acid ethyl ester is heated with 34 g of triethyl phosphite in an oil bath for 3 hours. The distillation gives 43 g of 5-diethylphosphono-2-methylpentene- (1) -4-one-1-carboxylic acid ethyl ester in a mixture with 5-diethylphosphono-2-methylpentene- (2) -4-one-1-carboxylic acid aryl ester as a light yellow oil with a boiling point of 145 to 147 ° C. 0.3 mm Hg. 12 g of 6-diethylphosphonomethyl-4-methyl-2-pyrone with a boiling point of 155 to 165.00.3 mm Hg are produced as a by-product, which solidifies after some time and then increases 41 to 42 C melts.
b) Zu einer Lösung von 19,2 g /J-lonom und 33 g des unter 1, a) beschriebenen Phosphonestergemisches in 100 ml Dimethylformamid läßt man unter Stickstoff die konzentrierte Lösung von 3 g Natrium in absolutem Äthanol zutropfen und rührt das Gemischb) To a solution of 19.2 g / J-ionom and 33 g of the phosphonic ester mixture described under 1, a) in 100 ml of dimethylformamide is left under nitrogen the concentrated solution of 3 g of sodium in absolute ethanol is added dropwise and the mixture is stirred
3 Stunden bei 45 bis 50 C. Nach Zugabe von 250 ml Wasser wird mit Äther ausgeschüttelt, die ätherische Lösung mit Wasser gewaschen, getrocknet und eingeengt. Bei der Destillation des Rückstandes gehen3 hours at 45 to 50 C. After adding 250 ml of water, shake out the ethereal with ether Solution washed with water, dried and concentrated. Go with the distillation of the residue
4 g unverändertes /Monon und anschließend 21 g 8 - [2,6,6 - Trimethylcyclohexen - (1) - yl] - 2,6 - dimethyl-1,5,7- bzw. ^,SJ-octatrien^-on-l-carbonsäureäthylester bei 165 bis 172 C/0,2 mm Hg als gelbrotes öl über.4 g unchanged / Monon and then 21 g 8 - [2,6,6 - trimethylcyclohexen - (1) - yl] - 2,6 - dimethyl-1,5,7- or ^, SJ-octatrien ^ -one-1-carboxylic acid ethyl ester at 165 to 172 C / 0.2 mm Hg as a yellow-red oil above.
Zu einer Suspension von 8,8 g 60°'nigem Natriumhydrid in 100 ml absolutem Benzol gibt man unter Stickstoff 19,2 g /Monon und anschließend 33 g des unter 1, a) beschriebenen Phosphonestergemisches. Es wird 1 Stunde bei Raumtemperatur und 1 Stunde bei 80 C gerührt, die erkaltete Lösung mit Wasser gewaschen! getrocknet und eingeengt. Das nicht umgesetzte /j-lonon wird durch Einblasen von Wasserdampf entfernt, der Rückstand in Benzol-Petroläther aufgenommen, getrocknet und die Lösung an Aluminiumo.xyd chromatographisch gereinigt. Nach Einengen der Lösung erhält man 16 g 8- [2,6,6 - Trimethylcyclohexen - (1) - yl] - 2,6 - dimethyl-1,5,7- bzw. -2,5,7-octatrien-4-on-l-carbonsäureäthv]-To a suspension of 8.8 g of 60% sodium hydride 19.2 g / Monon and then 33 g of des are added to 100 ml of absolute benzene under nitrogen under 1, a) described phosphonic ester mixture. It will be 1 hour at room temperature and 1 hour stirred at 80 C, washed the cooled solution with water! dried and concentrated. Not that one converted / j-ionon is by blowing in Removed water vapor, the residue taken up in benzene petroleum ether, dried and the solution purified by chromatography on aluminum oxide. After concentrating the solution, 16 g are obtained 8- [2,6,6 - trimethylcyclohexen - (1) - yl] - 2,6 - dimethyl-1,5,7- or -2,5,7-octatrien-4-one-l-carboxylic acid ether] -
ester.ester.
Eine Lösung von 33 g des unter 1. a) beschriebenen Phosphonestergemisches in 200 ml wasserfreiem Dimethylformamid wird mit 34 g tertiärem Kaliumbutylat und anschließend mit 40 g /./-Ionon versetzt. Nach 3stündigem Rühren bei Raumtemperatur wird das Gemisch mit Wasser verdünnt, mit Äther aus-2S geschüttelt, die ätherische Lösung eingeengt, das überschüssige ,./-Ionon durch Wasserdampfdestillation entfernt und der Rückstand destilliert. Man erhält 27 g 8 - [2,6,6 - Trimethylcyclohexen - (1) - yl]-2,6 - dimethyl -1.5,7 - bzw. - 2,5,7 - octatrien - 4 - onl-carbonsäureäthylester. A solution of 33 g of the phosphonic ester mixture described under 1. a) in 200 ml of anhydrous dimethylformamide is mixed with 34 g of tertiary potassium butoxide and then with 40 g of /./ ionone. After stirring for 3 hours at room temperature, the mixture is diluted with water, with ether Removing 2S shaken, the ethereal solution evaporated, the excess / -. Ionone removed by steam distillation and the residue distilled. 27 g of ethyl 8 - [2,6,6 - trimethylcyclohexen - (1) - yl] - 2,6 - dimethyl - 1,5,7 - or - 2,5,7 - octatrien - 4 - one - carboxylic acid ethyl ester are obtained.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DEF43049A DE1234712B (en) | 1964-06-03 | 1964-06-03 | Process for the preparation of low molecular weight 8- [2, 6, 6-trimethylcyclohexen- (1) -yl] -2, 6-dimethyl-1, 5, 7- or -2, 5, 7-octatrien-4-one- 1-carboxylic acid alkyl esters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DEF43049A DE1234712B (en) | 1964-06-03 | 1964-06-03 | Process for the preparation of low molecular weight 8- [2, 6, 6-trimethylcyclohexen- (1) -yl] -2, 6-dimethyl-1, 5, 7- or -2, 5, 7-octatrien-4-one- 1-carboxylic acid alkyl esters |
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DE1234712B true DE1234712B (en) | 1967-02-23 |
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DEF43049A Pending DE1234712B (en) | 1964-06-03 | 1964-06-03 | Process for the preparation of low molecular weight 8- [2, 6, 6-trimethylcyclohexen- (1) -yl] -2, 6-dimethyl-1, 5, 7- or -2, 5, 7-octatrien-4-one- 1-carboxylic acid alkyl esters |
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DE1109671B (en) * | 1958-10-17 | 1961-06-29 | Basf Ag | Process for the production of ª ‡, ª ‰ -unsaturated carboxylic acid esters or the free acids |
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1964
- 1964-06-03 DE DEF43049A patent/DE1234712B/en active Pending
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DE1109671B (en) * | 1958-10-17 | 1961-06-29 | Basf Ag | Process for the production of ª ‡, ª ‰ -unsaturated carboxylic acid esters or the free acids |
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