CH128720A - Process for the manufacture of a product suitable for displaying an artificial coffee aroma. - Google Patents
Process for the manufacture of a product suitable for displaying an artificial coffee aroma.Info
- Publication number
- CH128720A CH128720A CH128720DA CH128720A CH 128720 A CH128720 A CH 128720A CH 128720D A CH128720D A CH 128720DA CH 128720 A CH128720 A CH 128720A
- Authority
- CH
- Switzerland
- Prior art keywords
- coffee aroma
- furfuryl
- product suitable
- displaying
- manufacture
- Prior art date
Links
Landscapes
- Tea And Coffee (AREA)
- Fats And Perfumes (AREA)
Description
Verfahren zur Herstellung eines für die Darstellung eines künstlichen Kaffee-Aromas geeigneten Produktes. Das schweiz. Patent 127511 hat ein Ver fahren zur Darstellung eines künstlichen das Kaffee-Aroma aufweisenden Produktes zum Gegenstand, bei welchem man mindestens eine schwefelhaltigeVerbindung mit mindestens einer sauerstoff- oder stickstoffhaltigen Ver bindung von der Art, wie sie im natürlichen Kaffee-Aroma enthalten ist, vermischt. Zweck mässig wird als schwefelhaltige Verbindung eine solche verwendet, die durch Einwirkung eines Merkaptans auf eine mindestens eine Carbonylgruppe aufweisende Verbindung er halten wurde.
Man kann auf ein Merkaptan, das den Furfurylkern enthält, z. B. Furfuryl-2-merkap- tan, Produkte einwirken lassen, welche min destens eine Carbonylgruppe aufweisen, und erhält so die a-Oxysulfide. Als mindestens eine Carbonylgruppe auf weisendeVerbindungen kommen Aldehyde und Diketone in Betracht.
Gegenstand vorliegender Erfindung ist nun ein Verfahren zur Herstellung einer solchen Schwefelhaltigen Verbindung, d. h. eines für die Darstellung eines künstlichen Kaffee-Aro- mas geeigneten Produktes. Gemäss diesem Verfahren lässt man Furfuryl-2-merkaptarr und Diacetyl aufeinander einwirken.
Beispiel: Man mischt molekulare Mengen von Fur- furyl-2-merkaptan und Diacetyl; wobei sich unter Erwärmen (a-Oxy-a-acetyl-äthyl)-fur- furyl-2-sulfid bildet. Das erhaltene, bisher unbekannte Produkt hat die Zusammensetzung Co Hie 0s S. Es ist ein farbloses 01 und nicht uniersetzt destillierbar, sondern spaltet sich dabei teilweise wieder in seine Komponenten.
Spaltung tritt auch mit Bisulfitlösung ein, sowie mit Schwermetallsalzen, welche das Furfuryl- merkaptan fällen; in beiden Fällen tritt die gelbe Farbe des Diacetyls auf. Das nach dem vorliegenden Verfahren erhaltene Produkt ist unlöslich in Wasser, löslich in organischen Lösungsmitteln; mit Mineralsäuren tritt Ver- harzung ein. Freie Alkalien spalten das Pro dukt, wobei nachträglich das entstehende Diacetyl in bekannter Weise durch das Alkali zersetzt wird.
Process for the manufacture of a product suitable for displaying an artificial coffee aroma. Switzerland. Patent 127511 relates to a method for the preparation of an artificial coffee-flavored product, in which at least one sulfur-containing compound is mixed with at least one oxygen- or nitrogen-containing compound of the type contained in the natural coffee aroma. Appropriately, the sulfur-containing compound used is one which was obtained by the action of a mercaptan on a compound having at least one carbonyl group.
One can refer to a mercaptan containing the furfuryl nucleus, e.g. B. furfuryl-2-mercap- tan, allow products to act which have at least one carbonyl group, and thus obtain the α-oxysulfide. Aldehydes and diketones are suitable as compounds having at least one carbonyl group.
The present invention now provides a process for the preparation of such a sulfur-containing compound, i. H. a product suitable for the representation of an artificial coffee aroma. According to this procedure, furfuryl-2-mercaptar and diacetyl are allowed to act on one another.
Example: Molecular quantities of furfuryl-2-mercaptan and diacetyl are mixed; whereby (a-oxy-a-acetyl-ethyl) -fur-furyl-2-sulfide is formed when heated. The so far unknown product obtained has the composition Co Hie 0s S. It is a colorless oil and cannot be distilled indefinitely;
Cleavage also occurs with bisulfite solution and with heavy metal salts, which precipitate furfuryl mercaptan; in both cases the yellow color of the diacetyl appears. The product obtained by the present process is insoluble in water, soluble in organic solvents; resinification occurs with mineral acids. Free alkalis split the product, and the diacetyl formed is subsequently decomposed in a known manner by the alkali.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE128720X | 1925-11-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH128720A true CH128720A (en) | 1928-11-16 |
Family
ID=5662692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH128720D CH128720A (en) | 1925-11-04 | 1926-09-16 | Process for the manufacture of a product suitable for displaying an artificial coffee aroma. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH128720A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143173A (en) | 1977-07-28 | 1979-03-06 | International Flavors & Fragrances Inc. | Flavoring with 5-acyl-2-(furfurylthio)dihydro-2,5-dialkyl-3-[2H]furanones |
-
1926
- 1926-09-16 CH CH128720D patent/CH128720A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4143173A (en) | 1977-07-28 | 1979-03-06 | International Flavors & Fragrances Inc. | Flavoring with 5-acyl-2-(furfurylthio)dihydro-2,5-dialkyl-3-[2H]furanones |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE578707C (en) | Process for the production of synthetic resins | |
CH128720A (en) | Process for the manufacture of a product suitable for displaying an artificial coffee aroma. | |
DE325647C (en) | Process for making an adhesive | |
DE570675C (en) | Process for removing pyridine bases from phenols or phenol-containing hydrocarbon oils | |
DE594197C (en) | Process for the production of resinous masses and lacquers | |
DE364040C (en) | Process for the production of resinous condensation products from aryloxyacetic acids and formaldehyde | |
DE442211C (en) | Process for the production of liquid condensation products from phenols and formaldehyde | |
DE529323C (en) | Process for the production of a viscous condensation product from phenol and formaldehyde | |
DE468391C (en) | Process for the production of resinous condensation products from phenols and formaldehyde, which are soluble in fatty oils and varnishes | |
DE611799C (en) | Process for the production of hardenable, highly polymerized, easily soluble condensation products | |
DE575766C (en) | Process for the production of water-soluble higher molecular condensation products | |
DE534808C (en) | Process for the preparation of resinous condensation products from phenols and aldehydes | |
DE357757C (en) | Process for the preparation of resinous condensation products from phenol carboxylic acids and formaldehyde | |
DE357091C (en) | Process for the preparation of resinous products | |
DE883649C (en) | Process for the production of resinous condensation products | |
DE336895C (en) | Process for tanning animal skins | |
DE389512C (en) | Process for the production of a non-dusting and non-corrosive fertilizer | |
DE712002C (en) | Process for the production of alkyd resins | |
DE702843C (en) | Process for the manufacture of non-fuel resins | |
DE717169C (en) | Process for the production of synthetic resins | |
DE423321C (en) | Production of a polishing agent | |
DE354864C (en) | Process for the preparation of condensation products from naphthalene and glycolic acid | |
DE499732C (en) | Process for the production of 1,8-cineole (eucalyptol) | |
DE671167C (en) | Process for the production of condensation products | |
DE378065C (en) | Method for increasing the sticking point of waste naphthylamine pitch |