DE1265743B - Verfahren zur Herstellung von (Dialkyl-hydroxyphenyl)-aethylen-alpha,beta-dicarbonsaeureestern - Google Patents
Verfahren zur Herstellung von (Dialkyl-hydroxyphenyl)-aethylen-alpha,beta-dicarbonsaeureesternInfo
- Publication number
- DE1265743B DE1265743B DEG40477A DEG0040477A DE1265743B DE 1265743 B DE1265743 B DE 1265743B DE G40477 A DEG40477 A DE G40477A DE G0040477 A DEG0040477 A DE G0040477A DE 1265743 B DE1265743 B DE 1265743B
- Authority
- DE
- Germany
- Prior art keywords
- acid esters
- dicarboxylic acid
- preparation
- hydroxyphenyl
- dialkyl
- 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 6
- 238000002360 preparation method Methods 0.000 title claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000003054 catalyst Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- YTIVTFGABIZHHX-UHFFFAOYSA-N butynedioic acid Chemical compound OC(=O)C#CC(O)=O YTIVTFGABIZHHX-UHFFFAOYSA-N 0.000 claims description 2
- 230000007717 exclusion Effects 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- -1 acetylenedicarboxylic acid ester Chemical class 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- DKGAVHZHDRPRBM-UHFFFAOYSA-N Tert-Butanol Chemical compound CC(C)(C)O DKGAVHZHDRPRBM-UHFFFAOYSA-N 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- DKCPKDPYUFEZCP-UHFFFAOYSA-N 2,6-di-tert-butylphenol Chemical compound CC(C)(C)C1=CC=CC(C(C)(C)C)=C1O DKCPKDPYUFEZCP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 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 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JUXXUMCETXNMIJ-UHFFFAOYSA-N 2,6-bis(2-methylbutan-2-yl)phenol Chemical compound CCC(C)(C)C1=CC=CC(C(C)(C)CC)=C1O JUXXUMCETXNMIJ-UHFFFAOYSA-N 0.000 description 1
- AMAPQLXDBQEZPS-UHFFFAOYSA-N 2,6-di(decan-2-yl)phenol Chemical compound CCCCCCCCC(C)C1=CC=CC(C(C)CCCCCCCC)=C1O AMAPQLXDBQEZPS-UHFFFAOYSA-N 0.000 description 1
- UAIMUPRLBYOLJL-UHFFFAOYSA-N 2-butan-2-yl-6-tert-butylphenol Chemical compound CCC(C)C1=CC=CC(C(C)(C)C)=C1O UAIMUPRLBYOLJL-UHFFFAOYSA-N 0.000 description 1
- DWTBZBLLDLEJMV-UHFFFAOYSA-N 2-methyl-6-(2,4,4-trimethylpentan-2-yl)phenol Chemical compound CC1=CC=CC(C(C)(C)CC(C)(C)C)=C1O DWTBZBLLDLEJMV-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000007259 addition reaction Methods 0.000 description 1
- 229910001854 alkali hydroxide Inorganic materials 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- YOUGRGFIHBUKRS-UHFFFAOYSA-N benzyl(trimethyl)azanium Chemical compound C[N+](C)(C)CC1=CC=CC=C1 YOUGRGFIHBUKRS-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- VHILMKFSCRWWIJ-UHFFFAOYSA-N dimethyl acetylenedicarboxylate Chemical compound COC(=O)C#CC(=O)OC VHILMKFSCRWWIJ-UHFFFAOYSA-N 0.000 description 1
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- VZCYOOQTPOCHFL-OWOJBTEDSA-L fumarate(2-) Chemical compound [O-]C(=O)\C=C\C([O-])=O VZCYOOQTPOCHFL-OWOJBTEDSA-L 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 229920005669 high impact polystyrene Polymers 0.000 description 1
- 239000004797 high-impact polystyrene Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 1
- MKNZKCSKEUHUPM-UHFFFAOYSA-N potassium;butan-1-ol Chemical compound [K+].CCCCO MKNZKCSKEUHUPM-UHFFFAOYSA-N 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- ODZPKZBBUMBTMG-UHFFFAOYSA-N sodium amide Chemical compound [NH2-].[Na+] ODZPKZBBUMBTMG-UHFFFAOYSA-N 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
Classifications
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- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/20—Thiols; Sulfides; Polysulfides
- C10M135/22—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M135/26—Thiols; Sulfides; Polysulfides containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing carboxyl groups; Derivatives thereof
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
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- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
- C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms
- C10M2219/085—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing carboxyl groups; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2010/00—Metal present as such or in compounds
- C10N2010/02—Groups 1 or 11
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
DEUTSCHES
PATENTAMT
AUSLEGESCHRIFT
Int. Cl.:
C07c
Deutsche KL; 12 ο-21 "
Nummer: 1265 743
Aktenzeichen: G 40477IV b/12 ο
Anmeldetag: 28. April 1964
Auslegetag: 11. April 1968
Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung von (Dialkyl-hydroxyphenyl)-äthylen-α,/y-'dicarbonsäureestern
der allgemeinen Formel
Verfahren zur Herstellung
von (Dialkyl-hydroxyphenyl)-äthylen-a,/?-dicarbonsäureeste'rn
von (Dialkyl-hydroxyphenyl)-äthylen-a,/?-dicarbonsäureeste'rn
HO
COOR3.
C = CH — COOR4
in der R1 und R2 je eine Alkylgruppe, vorzugsweise
je eine tertiäre Alkylgruppe mit 4 bis 8 Kohlenstoffatomen und R3 und R4. je eine Alkylgruppe mit 1 bis
24 Kohlenstoffatomen bedeuten.
Das Verfahren ist dadurch gekennzeichnet, daß man einen Acetylendicarbonsäureester der allgemeinen
Formel
R3OOC-C=C-COOR4
mit einem Dialkylphenol der allgemeinen Formel
Anmelder: '
J. R, Geigy A. G., Basel (Schweiz)
Vertreter: ■ ■
Dr. F. Zumstein, ;
Dipl.-Chem. Dr. rer. nat. E. Assmann
und Dipl.-Chem. Dr. R. Koenigsberger,'
Patentanwälte,
8000 München 2, Bräuhausstr. 4
Als Erfinder benannt:
David Herbert Steinberg, Bronx, N. Y. (V, St. A.)
Beanspruchte Priorität:
V. St. v. Amerika vom 29. April 1963 (276193)
HO
in Gegenwart von 0,01 bis 100 Molprozent, bezogen auf das Dialkylphenol, eines basischen Katalysators
bei 20 bis 100° C, vorzugsweise unter Ausschluß von Sauerstoff, umsetzt.
Die Umsetzung des Acetylendicarbonsäureesters mit dem Dialkylphenol wird in An- oder Abwesenheit
eines -Lösungsmittels und vorzugsweise in Gegenwart von Kalium-tertiär-butylat als basischer Katalysator
vorgenommen. Vorzugsweise erfolgt die Umsetzung in einem geeigneten Lösungsmittel, z. B. einem der
Reaktionsteilnehmer selbst, oder in zusätzlichen Lösungsmitteln, wie schwer veresterbaren Alkoholen,
besonders tertiären Alkaiiolen mit höchstens 8 Kohlenstoffatomen, ζ. B. tertiär-Butanol oder Äthern,
z. B. Tetrahydrofuran.
Die Acetylendicarbonsäureester werden nach bekannten Methoden hergestellt.
Die Herstellung der Dialkylphenole erfolgt ebenfalls in bekannter Weise durch Alkylierung, von Phenolen. Einige dieser Dialkylphenole, wie das 2,6-Ditertiär-butylphenol,
sind im Handel erhältlich. Beispiele für Dialkylphenole sind ferner: 6-tert,-Butylo-kresol,
6-(l,l,3,3-Tetramethylbutyl)-o-kresol, 2-sek.-Butyl-6-tert.-butylphenol,
2,6-Bis-(1,1 -dimethyln-propyl)-phenol,
2,6-Bis-(l-methyl-n-nonyl)-phenol, 2-(l,l,3,3-Tetramethyl-n-butyl)-6-methylphenol.
Die erfindungsgemäß erhaltenen (Dialkylhydroxyphenyl)-äthylen-a,/i-dicarbonsäureester
können zur Stabilisierung von. organischen Stoffen, die der Zersetzung durch Sauerstoff unterworfen sind, verwendet
werden. Als mit diesen Stabilisatoren zu schützende Stoffe seien erwähnt: Polyolefine, besonders Kunstharze,
wie Polystyrol, Polypropylen, Polybutylen und Polyäthylen. Weiterhin können auch Kohlenwasserstoffe, Schmieröle, Benzine, Fette, öle und Wachse
sowie Elastomere, besonders Gemische von Elastomeren und anderen Polymeren, wie Polybutadien
enthaltendes hochschlagfestes Polystyrol, stabilisiert werden.
Bezüglich der Reaktionsbedingungen für die Herstellung der Verbindungen der Formel I sei folgendes
näher ausgeführt:
Die Additionsreaktion wird vorzugsweise bei einer Temperatur von 30 bis 6O0C und in einem molaren
Verhältnis der beiden Ausgangsverbindungen von 1 :1 durchgeführt. Geeignete Katalysatorkonzentrationen
sind 0,01 bis 100 Molprozent, berechnet auf das Phenol; vorzugsweise werden äquimolare Mengen
eingesetzt. Optimale Ausbeuten werden erhalten, wenn die Reaktion unter Ausschluß von Luftsauerstoff
vorgenommen wird, was durch Umsetzen der
■-'--.-. 809538/551
Reaktionspartner unter einer inerten Gasatmosphäre, wie Stickstoff, erreicht werden kann. Geeignete Katalysatoren
für die Umsetzung sind quartäre Ammoniumbasen, z. B. Benzyltrimethylammoniurnmethylat
oder Alkaliamide, z. B, Natriumamid oder Alkalialkoholate,
vorzugsweise ein niedrigmolekulares Alkalialkoholat, z. B. Natrium- oder Kaliuni-n-butylat,
-sek.-butylat, -terL-butylat oder Alkalihydroxyde, z.B.
Natrium- oder Kaliumhydroxyd. Die Erdalkalialkoholate und -hydroxyde sind auch verwendbar.
Das folgende Beispiel veranschaulicht die Erfindung. Falls nichts anderes vermerkt, sind Teile als
Gewichtsteile angegeben. Die Beziehung zwischen Gewichtsteilen und Volumteilen sind die von Gramm
zu Kubikzentimeter.
Zu einer Lösung von 6,78 Teilen Kalium-tert.-butylat
in 125 Volumteilen trockenem tert.-Butylalkohol werden unter Stickstoffatmosphäre 37,1 Teile
geschmolzenes 2,6-Di-tert.-butylphenol unter Rühren zugegeben. Die erhaltene grüne Lösung wird innerhalb
von 30 Minuten unter fortgesetztem Rühren zu einer Lösung von 10,65 Teilen Acetylendicarbonsäuredimethylester
in 30 Volumteilen trockenem Butanol gegeben. Das erhaltene Gemisch wird hierauf
unter Rühren 21 Stunden auf 55 bis 6O0C erhitzt, dann abgekühlt, mit verdünnter Salzsäure angesäuert
und mit Äther und Wasser durchgeschüttelt. Die Schichten werden getrennt und die wäßrige Schicht
noch zweimal mit Äther extrahiert. Die ursprüngliche ätherische Schicht und die beiden ätherischen Extrakte
werden vereinigt, mit Wasser und dann mit einer gesättigten Natriumchloridlösung gewaschen
und über Natriumsulfat getrocknet. Nach der Entfernung des Trockenmittels wird das Lösungsmittel
abdestilliert, wobei 44,0 Teile 2-(3',5'-Dr-tert.-butyl-4'-hydroxyphenyl)-butendisäure
-dimethy!ester mit einem Siedepunkt von 184" C bei 0,8 Torr zurückbleiben. Aus einem Cyclohexan-Hexan-Gemisch umkristallisiert,
fällt ein festes Produkt mit einem Schmelzpunkt von 142 bis 143° C an.
Claims (1)
- Patentanspruch: 'Verfahren zur Herstellung von (Dialkylhydroxyphenyl)-äthylen-u,^-dicarbonsäureestern der allgemeinen FormelHOCOOR3
= CH-COOR4in der R1 und R2 je eine Alkylgruppe, vorzugsweise je eine tertiäre Alkylgruppe mit 4 bis 8 Kohlenstoffatomen, und R3 und R4 je eine Alkylgruppe mit 1 bis 24 Kohlenstoffatomen bedeuten, dadurch gekennzeichnet, daß man einen Acetylendicarbonsäureesfer der allgemeinen FormelR3OOC-C=C-COOR4mit einem Dialkylphenol der allgemeinen FormelHOin Gegenwart von 0^01 bis 100 Molprozent, bezogen auf das Dialkylphenol, eines basischen Katalysators bei 20 bis 1000C, vorzugsweise unter Ausschluß von Sauerstoff, umsetzt.Bei der Bekanntmachung der Anmeldung ist ein Prioritätsbeleg ausgelegt worden.809 53J/S51 4.5S O Bundesdruckerei Berlin
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US276193A US3281455A (en) | 1963-04-29 | 1963-04-29 | Process for the preparation of carbonyl compounds containing a hindered phenol group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1265743B true DE1265743B (de) | 1968-04-11 |
Family
ID=23055587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG40477A Pending DE1265743B (de) | 1963-04-29 | 1964-04-28 | Verfahren zur Herstellung von (Dialkyl-hydroxyphenyl)-aethylen-alpha,beta-dicarbonsaeureestern |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3281455A (de) |
| BE (1) | BE647220A (de) |
| CH (1) | CH432498A (de) |
| DE (1) | DE1265743B (de) |
| ES (1) | ES299283A1 (de) |
| GB (1) | GB1000217A (de) |
| NL (1) | NL6404636A (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3458563A (en) * | 1965-03-31 | 1969-07-29 | Merck & Co Inc | ((3 - (hydrocarbylpolythio)alkanoyl)phenoxy)alkanoic acids and ((3-(hydrocarbylpolythio)alkanoyl)phenylthio)alkanoic acids |
| US3368997A (en) * | 1965-11-15 | 1968-02-13 | Geigy Chem Corp | Composition and method for the stabilization of organic material |
| US3789064A (en) * | 1969-12-10 | 1974-01-29 | Cincinnati Milacron Chem | Sulfur-containing esters of substituted hydroxyphenyl alkanoic acids |
| US4396552A (en) * | 1980-02-08 | 1983-08-02 | Ciba-Geigy Corporation | Novel metal mercaptides of esters of β-mercaptoalkanols |
| US4547539A (en) * | 1983-02-03 | 1985-10-15 | Ciba-Geigy Corporation | Substituted (4-hydroxyphenylthio) succinic anhydride or succinate stabilizers |
| US4529809A (en) * | 1983-08-29 | 1985-07-16 | General Electric Company | Method for production of aryl substituted esters |
| GB8609455D0 (en) * | 1986-04-17 | 1986-05-21 | Ici Plc | Fungicides |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2213717A (en) * | 1938-09-30 | 1940-09-03 | Rhone Poulenc Sa | Alkyl esters of 3-methoxy-coumaric acid and pharmaceutical compositions containing same |
| US2831898A (en) * | 1954-04-29 | 1958-04-22 | Ethyl Corp | Phenol alkylation process |
| US3002992A (en) * | 1958-10-10 | 1961-10-03 | Givaudan Corp | Alkoxyalkyl esters of p-methoxycinnamic acid |
| DE1128434B (de) * | 1959-06-15 | 1962-04-26 | Cilag Chemie | Verfahren zur Herstellung von 2-Aryl-2-amino-alkylmercapto-essigsaeureestern |
| US3040086A (en) * | 1959-12-21 | 1962-06-19 | Monsanto Chemicals | (halophenylthio)-haloacrylates |
-
1963
- 1963-04-29 US US276193A patent/US3281455A/en not_active Expired - Lifetime
-
1964
- 1964-03-26 CH CH397964A patent/CH432498A/de unknown
- 1964-04-27 NL NL6404636A patent/NL6404636A/xx unknown
- 1964-04-28 DE DEG40477A patent/DE1265743B/de active Pending
- 1964-04-28 BE BE647220D patent/BE647220A/xx unknown
- 1964-04-28 GB GB17549/64A patent/GB1000217A/en not_active Expired
- 1964-04-28 ES ES299283A patent/ES299283A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES299283A1 (es) | 1964-11-01 |
| GB1000217A (en) | 1965-08-04 |
| BE647220A (de) | 1964-10-28 |
| CH432498A (de) | 1967-03-31 |
| US3281455A (en) | 1966-10-25 |
| NL6404636A (de) | 1964-10-30 |
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