DE207155C - - Google Patents
Info
- Publication number
- DE207155C DE207155C DENDAT207155D DE207155DA DE207155C DE 207155 C DE207155 C DE 207155C DE NDAT207155 D DENDAT207155 D DE NDAT207155D DE 207155D A DE207155D A DE 207155DA DE 207155 C DE207155 C DE 207155C
- Authority
- DE
- Germany
- Prior art keywords
- pinene
- chlorohydrate
- metal salt
- fatty acid
- acid
- 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.)
- Active
Links
- GRWFGVWFFZKLTI-UHFFFAOYSA-N (+-)-2-pinene Chemical compound CC1=CCC2C(C)(C)C1C2 GRWFGVWFFZKLTI-UHFFFAOYSA-N 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- 239000011780 sodium chloride Substances 0.000 claims description 7
- 239000002184 metal Chemical class 0.000 claims description 6
- 229910052751 metal Chemical class 0.000 claims description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 5
- 239000000194 fatty acid Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- JIAARYAFYJHUJI-UHFFFAOYSA-L Zinc chloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 239000011592 zinc chloride Substances 0.000 claims description 3
- 235000005074 zinc chloride Nutrition 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 7
- 229960000583 Acetic Acid Drugs 0.000 description 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- DTGKSKDOIYIVQL-WEDXCCLWSA-N (+)-borneol Chemical group C1C[C@@]2(C)[C@@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-WEDXCCLWSA-N 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butanoic acid Chemical compound CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 2
- DSSYKIVIOFKYAU-UHFFFAOYSA-N Camphor Chemical compound C1CC2(C)C(=O)CC1C2(C)C DSSYKIVIOFKYAU-UHFFFAOYSA-N 0.000 description 2
- 229960000846 Camphor Drugs 0.000 description 2
- 241000723346 Cinnamomum camphora Species 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229930007890 camphor Natural products 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- -1 isobornyl ester Chemical class 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- CRPUJAZIXJMDBK-DTWKUNHWSA-N (+)-camphene Chemical compound C1C[C@@H]2C(=C)C(C)(C)[C@H]1C2 CRPUJAZIXJMDBK-DTWKUNHWSA-N 0.000 description 1
- DTGKSKDOIYIVQL-MRTMQBJTSA-N Isoborneol Natural products C1C[C@@]2(C)[C@H](O)C[C@@H]1C2(C)C DTGKSKDOIYIVQL-MRTMQBJTSA-N 0.000 description 1
- KGEKLUUHTZCSIP-FOGDFJRCSA-N [(1R,3R,4R)-4,7,7-trimethyl-3-bicyclo[2.2.1]heptanyl] acetate Chemical compound C1C[C@@]2(C)[C@H](OC(=O)C)C[C@@H]1C2(C)C KGEKLUUHTZCSIP-FOGDFJRCSA-N 0.000 description 1
- 239000001940 [(1R,4S,6R)-1,7,7-trimethyl-6-bicyclo[2.2.1]heptanyl] acetate Substances 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 1
- 229930006709 borneol Natural products 0.000 description 1
- 229930006739 camphene Natural products 0.000 description 1
- 230000003197 catalytic Effects 0.000 description 1
- 150000001804 chlorine Chemical class 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/10—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with ester groups or with a carbon-halogen bond
- C07C67/11—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with ester groups or with a carbon-halogen bond being mineral ester groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/36—Systems containing two condensed rings the rings having more than two atoms in common
- C07C2602/42—Systems containing two condensed rings the rings having more than two atoms in common the bicyclo ring system containing seven carbon atoms
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 12 o. GRUPPECLASS 12 or GROUP
Dr. CHARLES WEIZMANN in MANCHESTERDr. CHARLES WEIZMANN in MANCHESTER
und THE CLAYTON ANILINE COMPANY LIMITEDand THE CLAYTON ANILINE COMPANY LIMITED
in CLAYTON β. MANCHESTER, Engl.in CLAYTON β. MANCHESTER, Engl.
Verfahren zur Herstellung von Fettsäureisobornylestern aus Pinenchlorhydrat durch Erhitzen mit einer Fettsäure und einem Metallsalz.Process for the preparation of fatty acid isobornyl esters from pinene chlorohydrate by heating with a fatty acid and a metal salt.
Patentiert im Deutschen Reiche vom 16. Februar 1907 ab.Patented in the German Empire on February 16, 1907.
Für diese Anmeldung ist bei der Prüfung gemäß dem Unionsvertrage vomFor this registration, the examination according to the Union Treaty of
20. März ή March 20 ή
14. Dezember 1900 auf Grund der Anmeldung in Großbritannien vom 5. April 1906 anerkannt.Recognized on December 14, 1900 on the basis of registration in Great Britain on April 5, 1906.
die Prioritätthe priority
Bei den bekannten Verfahren zur Herstellung von Isobornylester aus Pinenchlorhydrat muß man entweder Camphen als Zwischenprodukt herstellen oder eine molekulare gegenseitige Umsetzung zwischen Pinenchlorhydrat und dem Metallsalze einer organischen Säure herbeiführen. Im letzteren Falle ist es notwendig, zum mindesten die theoretische Menge des Metallsalzes anzuwenden, um die ganze Menge des im Pinenchlorhydrat vorhandenen Chlorwasserstoffs abzuspalten und zu binden. Diese theoretische Menge ist aber zuweilen sehr beträchtlich.In the known process for the production of isobornyl ester from pinene chlorohydrate one must either produce camphene as an intermediate or a molecular mutual product Bring reaction between pinene chlorohydrate and the metal salt of an organic acid. In the latter case it is necessary at least the theoretical amount of the metal salt to be used in order to obtain the whole amount of that present in the pinene chlorohydrate Split off and bind hydrogen chloride. But this theoretical amount is sometimes very considerable.
Es wurde nun gefunden, daß man Isobornylester direkt, also in einer einzigen Operation dadurch herstellen kann, daß man Pinenchlorhydrat mit einer geeigneten organischen Säure in Gegenwart einer kleinen Menge Zinkchlorid erhitzt. . Die hierfür notwendige Menge des letzteren Salzes, welches die Reaktion veranlaßt, ist alsdann so gering, daß man im vorliegenden Falle von einer katalytischen Wirkung sprechen kann, und hierdurch unterscheidet sich das vorliegende Verfahren von ähnlichen Verfahren, die auf der molekularen gegenseitigen Umsetzung von Pinenchlorhydrat mit einem organischen Metallsalze beruhen.It has now been found that isobornyl esters can be used directly, that is to say in a single operation can be prepared by pinene chlorohydrate with a suitable organic Acid heated in the presence of a small amount of zinc chloride. . The amount required for this of the latter salt, which causes the reaction, is then so small that one im present case can speak of a catalytic effect, and thus differentiates The present process differs from similar processes based on the molecular interconversion of pinene chlorohydrate based with an organic metal salts.
50 Gewichtsteile Pinenchlorhydrat werden mit 200 Gewichtsteilen Eisessig und 2 Gewichtsteilen wasserfreiem Zinkchlorid zum Kochen erhitzt, bis die Entwickelung von Chlorwasserstoff vollständig oder fast vollständig aufgehört hat. Der Überschuß von Essigsäure wird alsdann abdestilliert und das zurückbleibende öl, welches aus Isobornylacetat besteht, in der üblichen Weise rektifiziert.50 parts by weight of pinene chlorohydrate are combined with 200 parts by weight of glacial acetic acid and 2 parts by weight anhydrous zinc chloride heated to a boil until the evolution of hydrogen chloride has stopped completely or almost completely. The excess of acetic acid will then distilled off and the remaining oil, which consists of isobornyl acetate, in the usual way rectified.
Die zwischen 100 und 120c C. bei 15 mm Druck übergehenden Anteile stellen eine Ausbeute von etwa 70 Prozent dar. Das Produkt ist nicht chlorfrei, jedoch ist dieser Chlorgehalt kein Hindernis für die weitere Aufarbeitung des Acetats zu einem technisch verwertbaren Kampfer, da bei der Verseifung des Esters, Reinigung des Isoborneol, dessen Oxydation und Reinigung des schließlich gewonnenen Kampfers der Chlorgehalt auf 1Z2 Prozent verringert wird.The proportions passing between 100 and 120 ° C. at 15 mm pressure represent a yield of about 70 percent. The product is not chlorine-free, but this chlorine content is not an obstacle to the further processing of the acetate into technically usable camphor, since the Saponification of the ester, purification of isoborneol, whose oxidation and purification of the camphor finally obtained, the chlorine content is reduced to 1 to 2 percent.
Die angegebenen Mengenverhältnisse können entsprechend abgeändert werden, und man .kann auch an Stelle von Essigsäure eine andere geeignete organische Säure, z. B. Ameisensäure, Buttersäure oder eine andere Fettsäure verwenden.The specified proportions can be changed accordingly, and you Instead of acetic acid, another suitable organic acid, e.g. B. formic acid, Use butyric acid or another fatty acid.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE207155C true DE207155C (en) |
Family
ID=469279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT207155D Active DE207155C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE207155C (en) |
-
0
- DE DENDAT207155D patent/DE207155C/de active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE1259867B (en) | Process for the production of carboxylic acids | |
DE2320544C2 (en) | Process for the preparation of 3-methyl mercaptopropionaldehyde | |
DE207155C (en) | ||
DE1179218B (en) | Process for the preparation of riboflavin-2 ', 3', 4 ', 5'-tetrabutyric acid ester | |
DE1668571C3 (en) | Process for the preparation of 2-methyl-polycycloalkylmethylamines | |
DE1801401B2 (en) | Proceed "1 for the production of fixed bed oridation catalysts | |
DE520939C (en) | Process for the preparation of allyl alcohol | |
DE683908C (en) | Process for the production of trimethylhydroquinone | |
DE252160C (en) | ||
DE1059453B (en) | Process for the preparation of carbonyl compounds from oxygen-containing organic compounds containing one or more carbon-carbon double bonds | |
AT401513B (en) | METHOD FOR PRODUCING 2-HYDROXY-4-PHENYLBUTTERIC ACID | |
DE568759C (en) | Process for the preparation of 2-methyl-5-oxypiperidine | |
DE2114211C3 (en) | Process for the production of citronellal | |
DE873547C (en) | Process for the production of polyenecarboxylic acids | |
DE244208C (en) | ||
DE1111163B (en) | Process for the preparation of mixtures from ª ‡, ª ‡, ª † - and ª ‡, ª †, ª † -trimethyladipic acid | |
DE947706C (en) | Use of esters obtained from products of the oxo synthesis as plasticizers | |
DE718072C (en) | Process for the preparation of therapeutically valuable primary alcohols | |
DE917425C (en) | Process for the production of azomethines | |
DE925584C (en) | Process for the preparation of oxygen-rich compounds of the cyclopentanopolyhydrophenanthrene series | |
DE917667C (en) | Process for the production of higher aliphatic unsaturated alcohols | |
DE925474C (en) | Process for the preparation of aminoacetal | |
DE892447C (en) | Process for the preparation of dicyclohexyl ethane compounds | |
DE875193C (en) | Process for the production of organic compounds containing oxygen | |
DE820305C (en) | Process for the production of valeric acids |