NL8104371A - Flavouring of tobacco prods. - with tri:methyl-cyclohexene derivs. - Google Patents

Flavouring of tobacco prods. - with tri:methyl-cyclohexene derivs. Download PDF

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NL8104371A
NL8104371A NL8104371A NL8104371A NL8104371A NL 8104371 A NL8104371 A NL 8104371A NL 8104371 A NL8104371 A NL 8104371A NL 8104371 A NL8104371 A NL 8104371A NL 8104371 A NL8104371 A NL 8104371A
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trimethyl
tobacco
hydroxy
cyclohex
cyclohexen
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NL8104371A
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Dutch (nl)
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Firmenich & Cie
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Priority claimed from CH77371A external-priority patent/CH552951A/en
Priority claimed from CH915671A external-priority patent/CH549955A/en
Priority claimed from CH38072A external-priority patent/CH549956A/en
Application filed by Firmenich & Cie filed Critical Firmenich & Cie
Priority to NL8104371A priority Critical patent/NL8104371A/en
Publication of NL8104371A publication Critical patent/NL8104371A/en

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D303/00Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
    • C07D303/02Compounds containing oxirane rings
    • C07D303/12Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms
    • C07D303/32Compounds containing oxirane rings with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms by aldehydo- or ketonic radicals
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • A23L27/202Aliphatic compounds
    • A23L27/2024Aliphatic compounds having oxygen as the only hetero atom
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • A23L27/202Aliphatic compounds
    • A23L27/2024Aliphatic compounds having oxygen as the only hetero atom
    • A23L27/2028Carboxy compounds
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • A23L27/203Alicyclic compounds
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • A23L27/204Aromatic compounds
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • A23L27/205Heterocyclic compounds
    • A23L27/2052Heterocyclic compounds having oxygen or sulfur as the only hetero atoms
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/34Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a carbocyclic ring other than a six-membered aromatic ring
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/34Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a carbocyclic ring other than a six-membered aromatic ring
    • A24B15/345Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a carbocyclic ring other than a six-membered aromatic ring containing condensed rings
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/36Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a heterocyclic ring
    • A24B15/365Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances containing a heterocyclic ring having nitrogen and sulfur as hetero atoms in the same ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C403/00Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone
    • C07C403/14Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms
    • C07C403/16Derivatives of cyclohexane or of a cyclohexene or of cyclohexadiene, having a side-chain containing an acyclic unsaturated part of at least four carbon atoms, this part being directly attached to the cyclohexane or cyclohexene or cyclohexadiene rings, e.g. vitamin A, beta-carotene, beta-ionone having side-chains substituted by doubly-bound oxygen atoms not being part of —CHO groups
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/63Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/64Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of functional groups containing oxygen only in singly bound form
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/587Unsaturated compounds containing a keto groups being part of a ring
    • C07C49/703Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups
    • C07C49/713Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups a keto group being part of a six-membered ring
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/16Systems containing only non-condensed rings with a six-membered ring the ring being unsaturated

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fats And Perfumes (AREA)

Abstract

The organoleptic properties of tobacco prods. are improved, augmented or modified by adding at least one cpd. (I) selected from 3,5,5-trimethyl-4 hydroxy-2-cyclohexen-1-one (Ia), 3,5,5-trimethyl-2,3-epoxy 1,4-cyclohexanedione (Ib), 2,6,6-trimethyl-4-hydroxy 2-cyclohexen-1-one (Ic), 4,4,6-trimethyl-2-hydroxy 2,5-cyclohexadien-1-one (Id), 3,5,5-trimethyl-3-cyclohexen-1-yl acetate (Ie), 3,5,5,-trimethyl 4-hydroxy-4-(3-oxo-1-butenyl)-2 cyclohexen-1-one (If), 3,5,5-trimethyl-2-hydroxy-2 cyclohexene-1,4-dione (Ig), and 3,5,5-trimethyl-2-hydroxy 2-cyclohexen-1-one (Ih). Cpds. (I) impart various flavour and aroma notes to tobacco smoke, generally sweet, smoked and/or herbal notes.

Description

ί . . / J 1 & • 0 i . - 1 -/ί. . / J 1 & • 0 i. - 1 - /

Werkwijze voor het verbeteren, versterken of modificeren van de organoleptische eigenschappen van een tabakprodukt, alsmede ter bereiding van daarbij toe te passen verbindingen.A method for improving, enhancing or modifying the organoleptic properties of a tobacco product, as well as for preparing compounds to be used therewith.

De uitvinding heeft betrekking op preparaten en op een werkwijze voor het verbeteren, versterken of modificeren van de geur-eigenschappen van tabakprodukten.The invention relates to preparations and to a method for improving, enhancing or modifying the odor properties of tobacco products.

Het is algemeen bekend dat tabak, die 5 bijvoorbeeld wordt gebruikt voor het vervaardigen van sigaretten, in hoofdzaak is samengesteld uit een mengsel van verschillende soorten tabak, die de karakteristieke geur en aroma geven, die gewenst zijn voor de gevormde tabaksrook. De algemeen vervaardigde sigaretten bevatten derhalve gewoonlijk mengsels van 10 Virginia, Maryland of Kentucky tabak, in combinatie met Oosterse of Turkse tabak.It is well known that tobacco, which is used, for example, for the manufacture of cigarettes, is mainly composed of a mixture of different types of tobacco, which give the characteristic odor and aroma desired for the tobacco smoke produced. Generally manufactured cigarettes therefore usually contain mixtures of Virginia, Maryland or Kentucky tobacco, in combination with Eastern or Turkish tobacco.

De respectievelijke hoeveelheden van de verschillende tabakssoorten worden gevarieerd om de gewenste speciale geur en aroma te verkrijgen. Het is ook algemeen gebruike-15 lijk aromatiserende bestanddelen en bevochtigers als toevoegingen voor deze tabaksmengsels te gebruiken om de organoleptische eigenschappen ervan verder te versterken.The respective amounts of the different tobaccos are varied to obtain the desired special aroma and aroma. It is also common practice to use flavoring ingredients and humectants as additives for these tobacco blends to further enhance their organoleptic properties.

De uitvinding heeft derhalve betrekking op een werkwijze voor het verbeteren, versterken of modificeren 20 van de organoleptische eigenschappen van een tabaksprodukt door daarin een aromatiserend preparaat of bepaalde synthetische aroma-tiseermiddelen op te nemen.The invention therefore relates to a method for improving, enhancing or modifying the organoleptic properties of a tobacco product by including an flavoring preparation or certain synthetic flavoring agents therein.

Volgens de uitvinding worden de geur en het aroma van tabaksrook verbeterd door aan de tabak (jiie 25 natuurlijke tabak kan zijn, dan wel een vervangingsmiddel voor tabak van natuurlijke of synthetische herkomst) een aromatiserend preparaat toe te voegen, dat ten minste een verbinding bevat, gekozen uit de volgende cycloalifatische derivaten, namelijk 8104371 f -¾ - 2 - (a) 3.5.5-trimethyl-cyclohex-2- Tetrahedron, Suppl. 8, een-4-ol-l-on Part I, ρ. 1 (1966) (b) 3.5.5-trimethyl-2.3-epoxy- n.v.According to the invention, the smell and aroma of tobacco smoke are improved by adding an flavoring composition containing at least one compound to the tobacco (which may be natural tobacco or a substitute for tobacco of natural or synthetic origin), selected from the following cycloaliphatic derivatives, namely 8104371 f-¾-2 - (a) 3.5.5-trimethyl-cyclohex-2-Tetrahedron, Suppl. 8, a-4-ol-l-on Part I, ρ. 1 (1966) (b) 3.5.5-trimethyl-2.3-epoxy n.v.

cyclohexaan-1.4-dion 5 (c) 2.6.6-trimethyl-cyclohex-2- n.v.cyclohexane-1,4-dione 5 (c) 2.6.6-trimethyl-cyclohex-2 n.v.

een-4-ol-l-on (d) 4.4.6-trimethyl-cyclohexa- n.v.en-4-ol-1-one (d) 4,4,6-trimethyl-cyclohexa- n.v.

2.5-dieen-2-ol-1-on (e) 3.5.5-trimethyl-cyclohex- n.v.2,5-dien-2-ol-1-one (e) 3.5.5-trimethyl-cyclohex- n.v.

10 3-een-l-yl acetaat (f) 3.5_j5-trimethyl-4-hydroxy- J.Org.Chem., 33, 3566 4-/ but-1-een-3-on_/-cyclo- (1968) hex-2-een-l-on (g) 3.5.5-trimethy1-2-hydroxy- Phytochemistry, K), 2755 15 cyclohex-2-een-l.4-dion (1971) (h) 3.5.5-trimethyl-cyclohex-2- J.Org.Chem. 24. 719 een-2-ol-l-on (1966)10 3-en-1-yl acetate (f) 3.5-5-trimethyl-4-hydroxy-J. Organ Chem., 33, 3566 4- / but-1-en-3-one-cyclo- (1968) hex-2-en-l-one (g) 3.5.5-trimethyl-2-hydroxy-Phytochemistry, K), 2755 15 cyclohex-2-en-1.4-dione (1971) (h) 3.5.5- trimethyl-cyclohex-2- J.Org.Chem. 24.719 a-2-ol-l-on (1966)

In de hierboven genoemde opsomming van de verbindingen is direct na de chemische naam van iedere verbinding · 20 de bron aangegeven, waaruit deze verbinding kan worden betrokken, dan wel een literatuurreferentie, waarin een bereidingswijze is beschreven. De in de handel verkrijgbare produkten zijn aangegeven door de afkorting i.h. en kunnen worden betrokken bij Fluka A.G., Buchs S.G., Zwitserland; Aldrich Chem. Co., Milwaukee, Wis.; 25 of K. & K. Laboratories Inc., Mainview, N.Y. 11803.In the above-mentioned list of the compounds, immediately after the chemical name of each compound · 20, the source is indicated, from which this compound can be obtained, or a literature reference in which a method of preparation is described. The commercially available products are indicated by the abbreviation i.h. and may be involved with Fluka A.G., Buchs S.G., Switzerland; Aldrich Chem. Co., Milwaukee, Erase .; 25 of K. & K. Laboratories Inc., Mainview, N.Y. 11803.

In die gevallen, waarbij nieuwe verbindingen worden beschreven, is een uitvoerige bereidingswijze beschreven in het verloop van deze beschrijving of in één van de voorbeelden. Nieuwe verbindingen zijn aangeduid door de afkorting 30 n.v.In those cases where new compounds are described, a detailed preparation method has been described in the course of this description or in one of the examples. New connections are indicated by the abbreviation 30 n.v.

De resultaten van de organoleptische waarde-ringsproeven zijn samengevat in de specifieke voorbeelden.The results of the organoleptic evaluation tests are summarized in the specific examples.

Een ander doel van de uitvinding is het verschaffen van preparaten voor het aromatiseren van tabak of 35 vervangingsmiddelen voor tabak, welke preparaten tenminste één van de hierboven genoemde verbindingen bevatten.Another object of the invention is to provide tobacco flavoring compositions or tobacco substitutes, which compositions contain at least one of the above-mentioned compounds.

Het ruime traject van organoleptische eigenschappen, dat met de hierboven genoemde verbindingen gepaard gaat, maakt het mogelijk een reeks effecten te verkrijgen, 8104371 '* * - 3 - afhankelijk van de aard van de afzonderlijke componenten, die in een bepaald aromatiserend preparaat worden toegepast.The wide range of organoleptic properties associated with the above-mentioned compounds makes it possible to obtain a range of effects, depending on the nature of the individual components used in a particular flavoring composition, 8104371.

De hier beschreven verbindingen en/of aromatiserende preparaten kunnen in een reeks vormen worden toe-5 gepast. Het verdient echter de voorkeur deze verbindingen of samenstellingen in de vorm van oplossingen te gebruiken. De chemische aard, oplosbaarheid en stabiliteit bepalen de vorm, waarin een bepaalde verbinding of samenstelling wordt toegepast.The compounds and / or flavoring compositions described herein can be used in a variety of forms. However, it is preferable to use these compounds or compositions in the form of solutions. The chemical nature, solubility and stability determine the form in which a particular compound or composition is used.

Een geschikte werkwijze voor het aromati-10 seren van tabak bestaat in het bestuiven van de tabak met een al-koholische oplossing van de verbinding of het aromatiserend preparaat. Combinaties van oplosmiddelen, zoals alkohol en propy-leenglycol, kunnen eveneens worden toegepast.A suitable method of flavoring tobacco is to dust the tobacco with an alcoholic solution of the compound or flavoring composition. Solvent combinations, such as alcohol and propylene glycol, can also be used.

De hoeveelheden van de nieuwe verbindin-15 gen, die moeten worden gebruikt in het betreffende preparaat of volgens de werkwijze van de uitvinding, kunnen binnen ruime grenzen variëren. Deze hoeveelheden hangen in het bijzonder af van de specifieke organoleptische effecten, die πεη wil bewerkstelligen en van de herkomst van de tabaksprodukten, waaraan de 20 genoemde aromatiserende bestanddelen worden toegevoegd. Zo kunnen bijvoorbeeld belangwekkende aromatiserende effecten worden bereikt met hoeveelheden van 1 tot 1000 dpm, berekend op het gewicht van het gearomatiseerde produkt. Speciale effecten kunnen echter worden verkregen met hoeveelheden van wel 5 of zelfs 25 10 Z. Kenmerkend worden hoeveelheden tussen ongeveer 10 en 200 dpm bij voorkeur toegepast.The amounts of the new compounds to be used in the particular composition or according to the method of the invention can vary within wide limits. These amounts depend in particular on the specific organoleptic effects which πεη aims to achieve and on the origin of the tobacco products to which the aforementioned flavoring components are added. For example, interesting flavoring effects can be achieved in amounts from 1 to 1000 ppm, based on the weight of the flavored product. However, special effects can be obtained in amounts as high as 5 or even 25 Z. Typically, amounts between about 10 and 200 ppm are preferably used.

In alle gevallen kunnen de hierboven genoemde trajecten worden gevarieerd, afhankelijk van de specifieke geur- of aroma-effecten, die men wil bewerkstelligen.In all cases, the ranges mentioned above can be varied depending on the specific odor or aroma effects desired to be achieved.

30 De uitvinding heeft tevens betrekking op een werkwijze ter bereiding van een nieuw cyclisch keton, namelijk 4.4.6-trimethyl-cyclohexa-2.5-dieen-2-ol-l-on. Volgens de werkwijze van de uitvinding wordt isoforon behandeld met een halogeneermiddel, bijvoorbeeld N-broomsuccinimide, teneinde een 35 3.5.5-trimethyl-4-halocyclohex-2-een-l-on te verkrijgen, waarna het aldus gevormde keton wordt geoxydeerd met een tertiair amine- 8104371 > *- - 4 - oxyde, bijvoorbeeld trimethylamineoxyde.The invention also relates to a process for the preparation of a new cyclic ketone, namely 4,4,6-trimethyl-cyclohexa-2,5-dien-2-ol-1-one. According to the method of the invention, isophorone is treated with a halogenating agent, for example N-bromosuccinimide, to obtain a 3.5.5-trimethyl-4-halocyclohex-2-ene-1-one, after which the ketone thus formed is oxidized with a tertiary amine 8104371> * - - 4 - oxide, for example trimethylamine oxide.

De bovengenoemde werkwijze is toegelicht in reactieschema A, waarin R een alkylgroep voorstelt.The above method is illustrated in Reaction Scheme A, wherein R represents an alkyl group.

Het gebruik van tertiaire amineoxyden 5 voor het bevorderen van de oxydatie van halogeenderivaten is bekend en in de chemische literatuur beschreven / zie bijvoorbeeld Berichte der Chemie, 94, 1360 (1961)_7- In overeenstemming met de stand der techniek zou men verwachten dat deze oxydatie zou verlopen via een kwaternair zout als tussenprodukt 10 met de formule 1, waarbij als eindprodukt dan een cyclohexaan- 1.4-dion zou worden verkregen. Verrassenderwijs is gebleken dat door oxydatie van 3.5.5-trimethyl-4-halocyclohex-2-een-l-on volgens de werkwijze van de uitvinding, in plaats daarvan een 1.2-dion derivaat wordt gevormd. Het genoemde diketon was in evenwicht 15 met zijn keto-enolvorm volgens reactieschema A.The use of tertiary amine oxides to promote the oxidation of halogen derivatives is known and described in the chemical literature / see, for example, Berichte der Chemie, 94, 1360 (1961) -7- In accordance with the prior art, this oxidation would be expected would proceed via a quaternary salt as intermediate 10 of the formula I, whereby a cyclohexane-1,4-dione would be obtained as the final product. It has surprisingly been found that by oxidation of 3,5,5-trimethyl-4-halocyclohex-2-en-1-one according to the method of the invention, a 1,2-dione derivative is formed instead. Said diketone was in equilibrium with its keto-enol form according to reaction scheme A.

De uitvinding heeft voorts betrekking op de hierboven genoemde nieuwe verbindingen.The invention further relates to the above-mentioned new compounds.

Deze verbindingen kunnen worden bereid volgens de hierna beschreven werkwijze.These compounds can be prepared according to the method described below.

20 (2) (b) 3.5.5-trimethyl-2.3-epoxy- cyclohexaan-l.4-dion 2 ml van een 6N waterige NaOH oplossing werden in de loop van 15 minuten bij 15°C gevoegd bij een mengsel van 3.5.5-trimethyl-cyclohex-2-een-l .4-dion (3,7 g) en wa-25 terstofperoxyde (8,3 ml van een 30 % oplossing) in 27 ml methanol. Het mengsel werd onder roeren 3 uur op 20-25°C gehouden, met water behandeld en met ether geëxtraheerd. De ge-. ; combineerde organische extracten werden tot neutraal met water i gewassen, boven MgSO^ gedroogd en drooggedampt.(2) (b) 3.5.5-trimethyl-2.3-epoxy-cyclohexane-1,4-dione 2 ml of a 6N aqueous NaOH solution was added to a mixture of 3.5 over 15 minutes at 15 ° C. 5-trimethyl-cyclohex-2-en-1,4-dione (3.7 g) and hydrogen peroxide (8.3 ml of a 30% solution) in 27 ml of methanol. The mixture was kept at 20-25 ° C for 3 hours with stirring, treated with water and extracted with ether. The GE-. ; combined organic extracts were washed to neutral with water, dried over MgSO 4 and evaporated to dryness.

30 Er werd op deze wijze 3,33 g (81,5 %) van het verlangde produkt verkregen, kookpunt 40°C/0,001 Torr.In this way 3.33 g (81.5%) of the desired product were obtained, boiling point 40 ° C / 0.001 Torr.

IR : 1715 cm * MS : M+ = 168; m/e: 56 NMR (CC14) : 1,05 (3H, s); 1,25 (3H, s); 1,50 (3H, s); 2,08 (lH,d, J«13 cps); 3,09 (1H, d, J=13 cps); 3,47 35 (lH,s) δ ppm.IR: 1715 cm * MS: M + = 168; m / e: 56 NMR (CC14): 1.05 (3H, s); 1.25 (3H, s); 1.50 (3H, s); 2.08 (1H, d, J <13 cps); 3.09 (1H, d, J = 13 cps); 3.47 (1H, s) δ ppm.

3.5.5-trimethyl-cyclohex-2-een-l.4-dion, 8104371 , * * - 5 - dat als uitgangsmateriaal voor de hierboven beschreven bereiding wordt gebruikt, kan worden verkregen volgens de werkwijze, die is beschreven in Tetrahedron, Suppl. 8, deel I, blz. 1, (1966).3.5.5-trimethyl-cyclohex-2-en-1,4-dione, 8104371, * * - 5 - which is used as starting material for the above preparation can be obtained according to the method described in Tetrahedron, Suppl . 8, Part I, p. 1, (1966).

5 (2) (c) 2.6.6-trimethyl-eyclohex-2-een- 4-ol-l-on5 (2) (c) 2.6.6-trimethyl-eyclohex-2-en-4-ol-l-one

Dit wordt bereid volgens de werkwijze, beschreven in Tetrahedron, Suppl. 8, deel I, blz. 1 (1966), waarbij van isoforon wordt uitgegaan.This is prepared according to the method described in Tetrahedron, Suppl. 8, Volume I, p. 1 (1966), starting from isophorone.

10 Naast het ketal-tussenprodukt met de formule 2, zoals beschreven, werd een ketal verkregen met de formule 3, dat werd gescheiden door kolomchromatografie op silicagel (elutie: benzeen + ethylacetaat).In addition to the ketal intermediate of the formula II as described, a ketal of the formula III was obtained, which was separated by column chromatography on silica gel (elution: benzene + ethyl acetate).

Het ketal (3) werd gereduceerd met LiAlH^ 15 in oplossing in ether en het aldus verkregen produkt werd direct gehydrolyseerd in een mengsel van dioxan en 5 % bij 20°C.The ketal (3) was reduced with LiAlH 2 3 in solution in ether and the product thus obtained was immediately hydrolysed in a mixture of dioxane and 5% at 20 ° C.

NMR (CC14) : 1,10 (6H, s); 1,72 (3H, s); 1,85-2,40 (2H, m); 4,50 (2H, s breed); 6,64 (1H, s breed) δ ppm.NMR (CC14): 1.10 (6H, s); 1.72 (3H, s); 1.85-2.40 (2H, m); 4.50 (2H, s wide); 6.64 (1H, s wide) δ ppm.

(2) (d) 4.4.6-trimethyl-cyclohexa-20 2.5-dieen-2-ob-l -on.(2) (d) 4.4,6-trimethyl-cyclohexa-20 2,5-dien-2-ob-1-one.

Bereid volgens voorbeeld II.Prepared according to example II.

(2) (e) 3.5.5-trimethyl-cyclohex-3-een-l-yl acetaat(2) (e) 3.5.5-trimethyl-cyclohex-3-en-1-yl acetate

Dit werd bereid door reductie met na-25 triumboriumhydride in methanol van β-isoforon (verkregen volgens J. Am. Chem. Soc., 63, 2308 (1941)), gevolgd door acetylering van het verkregen 3.5.5-trimethyl-cyclohex-3-een-l-ol met azijnzuuranhydride in aanwezigheid van natriumacetaat bij 50°C gedurende 20 uur.This was prepared by reduction of β-isophorone (obtained according to J. Am. Chem. Soc., 63, 2308 (1941)) with sodium trihydric borohydride in methanol, followed by acetylation of the obtained 3.5.5-trimethyl-cyclohex- 3-en-1-ol with acetic anhydride in the presence of sodium acetate at 50 ° C for 20 hours.

30 NMR (CC14): 1,0 (6H, s); 1,62 (3H, s); 1,92 (3H, s); 5,10 (lH,s); 4,6-5,2 (lH,m) δ ppm.NMR (CC14): 1.0 (6H, s); 1.62 (3H, s); 1.92 (3H, s); 5.10 (1H, s); 4.6-5.2 (1H, m) δ ppm.

De uitvinding wordt nader toegelicht door de volgende voorbeelden.The invention is further illustrated by the following examples.

35 8104371 * - 6 - r * ** r35 8104371 * - 6 - r * ** r

Voorbeeld XExample X.

7 g van een 1 % alkoholische oplossing van 3.5.5-trimethyl-2.3-epoxy-cyclohexaan-l.4-dion (in 95 % ethylalkohol) werd verstoven op een mengsel van tabak van een 5 "american blend" (100 g). De aldus gearomatiseerde tabak werd gebruikt voor het vervaardigen van "proef" sigaretten, waarvan de rook vervolgens werd onderworpen aan organoleptische waardering door vergelijking met niet-gearomatiseerde sigaretten ("blanco"). De tabak, die werd gebruikt voor de vervaardiging van 10 de "blanco" sigaretten werd vooraf behandeld met 95 % ethylalkohol.7 g of a 1% alcoholic solution of 3.5.5-trimethyl-2.3-epoxy-cyclohexane-1,4-dione (in 95% ethyl alcohol) was sprayed on a tobacco mixture of a 5 "American blend" (100 g) . The tobacco so flavored was used to make "test" cigarettes, the smoke of which was subsequently subjected to organoleptic evaluation by comparison with unflavored cigarettes ("blank"). The tobacco used to make the "blank" cigarettes was pre-treated with 95% ethyl alcohol.

Het panel van deskundigen definieerde de smaak van de "proef" sigaretten unaniem als zoeter dan die van de "blanco" sigaretten; bovendien had de rook een noot met een 15 verbeterd kruidig karakter en wekte herinneringen aan de smaak van sigarenrook.The panel of experts unanimously defined the taste of the "test" cigarettes as sweeter than that of the "blank" cigarettes; moreover, the smoke had a note with an improved spicy character and evoked memories of the taste of cigar smoke.

Hierna werden andere monsters gewaardeerd op dezelfde wijze als in voorbeeld I. De volgende tabak geeft een lijst van de onderzochte verbindingen, alsmede van de 20 gebruikte hoeveelheden en het waargenomen aroma-effect.Hereafter, other samples were rated in the same manner as in Example 1. The following tobacco lists the compounds tested, as well as the amounts used and the perceived aroma effect.

TabelTable

Verb in- Hoeveelheid^ Organoleptische waardering^ ding Γ g_7 (a) 1,0-10,0 zoet, gerookt karakter 25 (b) 1,0-10,0 zoet, fenolisch gerookt karakter; enigszins nootachtige chocolade smaak (c) 1,0-10,0 gerookt karakter; iets nootachtig, fenolische smaak; enigszins ionon-30 karakter (d) 7,0 zoet, houtachtig karakter; anijs- achtige noot; aangenamer (e) 1,0-10,0 zoet, houtachtig, gerookt karakter (\\ (f) 1,0-10,0 zoet, gerookt karakter 35 (g) 1,0-10,0 zoet, houtachtig, kruidig (h) 1,0-10,0 zoet, kruidig 8104371 » * r - 7 - (1) De hoeveelheden hebben betrekking op de hoeveelheden van een 1 %'s alkoholische oplossing (95 %'s ethylalkohol).Verb in Quantity ^ Organoleptic Rating ^ thing Γ g_7 (a) 1.0-10.0 sweet smoked character 25 (b) 1.0-10.0 sweet phenolic smoked character; slightly nutty chocolate flavor (c) 1.0-10.0 smoked character; slightly nutty, phenolic taste; slightly ionon-30 character (d) 7.0 sweet woody character; anise-like nut; more pleasant 1.0-10.0 sweet, woody, smoked character (\\ (f) 1.0-10.0 sweet, smoked character 35 (g) 1.0-10.0 sweet, woody, spicy (h) 1.0-10.0 sweet, spicy 8104371 * r - 7 - (1) The amounts refer to the amounts of a 1% alcoholic solution (95% ethyl alcohol).

(2) De angegeven karakters hebben betrekking op specifieke aroma-eigenschappen van de onderzochte verbindingen bij 5 tabak, in vergelijking met een niet-gearomatiseerde tabak.(2) The indicated characters refer to specific aroma properties of the tested compounds in tobacco, compared to an unflavored tobacco.

(3) De aangegeven hoeveelheid heeft betrekking op de hoeveelheden van een 2 %fs alkoholische oplossing (95 %'s ethylalkohol) .(3) The indicated amount refers to the amounts of a 2% alcoholic solution (95% ethyl alcohol).

10 Voorbeeld IIExample II

(a) Een mengsel van 13,82 g isoforon (0,1 mol) en 17,80 g (0,1 mol) N-broomsuccinimide werd in aanwezigheid van sporen α.α'-azodiisobutyronitril gedurende 15 minuten in 500 ml CCl^ aan een terugvloeikoeler verhit. Daarna 15 werd 500 ml petroleumether (30-50°C) toegevoegd om het reactie-mengsel af te koelen en het aldus geprecipiteerde succinimide werd afgefiltreerd. Door de vluchtige componenten uit het heldere filtraat te verdampen werd ruw 3.5.5-trimethyl-4-broom-cyclohex-2-een-l-on verkregen.(a) A mixture of 13.82 g of isophorone (0.1 mol) and 17.80 g (0.1 mol) of N-bromosuccinimide in the presence of traces of α.α'-azodiisobutyronitrile in 500 ml of CCl for 15 minutes. heated to a reflux condenser. Then, 500 ml of petroleum ether (30-50 ° C) was added to cool the reaction mixture and the succinimide thus precipitated was filtered off. Evaporation of the volatile components from the clear filtrate gave crude 3.5.5-trimethyl-4-bromo-cyclohex-2-en-1-one.

20 NMR (CC14) i 1,16 (3H, s); 1,25 (3H, s); 2,11 (3H, s); 2,07 (1H, d, J=16 cps); 2,53 (1H, d, J=16 cps); 4,45 (1H, s); 5,78 (1H, s) S ppm.NMR (CC14) δ 1.16 (3H, s); 1.25 (3H, s); 2.11 (3H, s); 2.07 (1H, d, J = 16 cps); 2.53 (1H, d, J = 16 cps); 4.45 (1H, s); 5.78 (1H, s) S ppm.

(b) In de loop van 30 minuten werd 43,4 g 3.5.5-trimethyl-4-broom-cyclohex-2-een-1-on gevoegd bij een 25 op 40°C gehouden oplossing van 32 g watervrij trimethylamine N-oxyde in 100 ml watervrij chloroform. De reactie was enigszins exotherm en de temperatuur van het mengsel werd gedurende de gehele toevoeging door uitwendig koelen op 45-50°C gehouden.(b) Over the course of 30 minutes, 43.4 g of 3,5.5-trimethyl-4-bromocyclohex-2-ene-1-one was added to a solution of 32 g of anhydrous trimethylamine N- kept at 40 ° C. oxide in 100 ml anhydrous chloroform. The reaction was slightly exothermic and the temperature of the mixture was kept at 45-50 ° C throughout the addition by external cooling.

Na afkoelen tot kamertemperatuur werd het mengsel uitgegoten 30 in 110 ml 10 %'s EbjSO^ en de organische lagen, die werden afgescheiden, werden gewassen met water (3x), een 10 %’s natrium-carbonaatoplossing (3x) en tenslotte weer met water (3x) tot neutraal.After cooling to room temperature, the mixture was poured into 110 ml of 10% EbjSO 2 and the organic layers which were separated were washed with water (3x), a 10% sodium carbonate solution (3x) and finally again with water (3x) to neutral.

Door verdamping van de vluchtige bestand- 35 delen, gevolgd door destillatie van het verkregen residu, werd een produkt verkregen met een kookpunt van 47-60°C bij 0,001 Torr.Evaporation of the volatile components, followed by distillation of the obtained residue, yielded a product with a boiling point of 47-60 ° C at 0.001 Torr.

8104371 > - 8 -8104371> - 8 -

Dit produkt werd behandeld met petroleumether (30-50°G) en daarna achtereenvolgens gewassen met een 5 %'s waterige oplossing van natriumcarbonaat (2x) en een 2 %, waterige oplossing van NaOH (2x). De moederlogen werden aangezuurd en onmiddellijk 5 geëxtraheerd met diethylether. De gecombineerde extracten werden gewassen, gedroogd boven MgSO^ en bij verlaagde druk ingedampt. Aldus werd 8 g van het gewenste produkt verkregen (zuiverheid 95 %). De volgende zuivering werd uitgevoerd door sublimeren bij 70-80°C/10 Torr en hierbij werd 6 g zuiver 4.4.6-trimethyl-cyclo-10 hexa-2.5-dieen-2-ol-l-on verkregen. Het produkt had een positieve test bij behandeling met een oplossing van ferrichloride (blauw-violette kleur); smleptunt 46°C.This product was treated with petroleum ether (30-50 ° G) and then washed successively with a 5% aqueous solution of sodium carbonate (2x) and a 2% aqueous solution of NaOH (2x). The mother liquors were acidified and immediately extracted with diethyl ether. The combined extracts were washed, dried over MgSO4 and evaporated under reduced pressure. Thus, 8 g of the desired product were obtained (purity 95%). The following purification was performed by sublimation at 70-80 ° C / 10 Torr to obtain 6 g of pure 4,4,6-trimethyl-cyclo-10 hexa-2,5-dien-2-ol-1-one. The product had a positive test when treated with a solution of ferric chloride (blue-violet color); melting point 46 ° C.

IR (CC14) : 1630, 1650, 3440 cm"1 UV : XEt0H = 205, 249, 310 mu (ε = 5650, 7880, 2420 15 respectievelijk) MS : M+ = 152; m/e: 109 NMR (CC14) : 1,27 (6H, s); 1,92 (3H, s); 5,97 (1H, pseudo d, J = ongeveer 2,5 cps); 6,34 (1H, m); 6,65 (1H, m) S ppm.IR (CC14): 1630, 1650, 3440 cm -1 UV: XEt0H = 205, 249, 310 mu (ε = 5650, 7880, 2420 15 respectively) MS: M + = 152; m / e: 109 NMR (CC14): 1.27 (6H, s); 1.92 (3H, s); 5.97 (1H, pseudo d, J = about 2.5 cps); 6.34 (1H, m); 6.65 (1H m) S ppm.

20 Onder de omstandigheden, die werden toe gepast voor het uitvoeren van de bovengenoemde analyse, vertoonde de verbinding een keto-enol structuur met de formule 4,Under the conditions used to perform the above analysis, the compound exhibited a keto-enol structure of the formula 4,

Het is echter redelijk om te veronderstellen dat onder andere omstandigheden het keto-enol evenwicht kan zijn verschoven ten 25 gunste van een diketonstructuur volgens de vergelijking B.However, it is reasonable to assume that under other circumstances the keto-enol balance may have shifted in favor of a diketone structure according to equation B.

Door vervanging van trimethylamineoxyde door hetzij andere tertiaire alifatische of cycloalifatische amine-oxyden, werden soortgelijke resultaten verkregen. Bovendien kun- j nen andere halogeneringsreagentia dan N-broomsuccinimide, die 30 positieve halogenen'kunnen verschaffen, worden gebruikt voor het bevorderen van de halogeneringstrap.Similar results were obtained by replacing trimethylamine oxide with either other tertiary aliphatic or cycloaliphatic amine oxides. In addition, halogenation reagents other than N-bromosuccinimide, which can provide 30 positive halogens, can be used to promote the halogenation step.

35 810437135 8104371

Claims (3)

1. Werkwijze voor het verbeteren, versterken of modificeren van de organoleptische eigenschappen van een tabaksprodukt, met het kenmerk, dat men daaraan ten minste 5 ëën verbinding, gekozen uit (a) 3.5.5-trimethyl-cyclohex-2-een-4-ol-1-on, (b) 3.5.5-trimethyl-2.3-epoxy-cyclohexaan-l.4-dion, (c) 2.6.6-trimethyl-cyclohex-2-een-4-ol-1-on, (d) 4.4.6-trimethylcyclohexa-2.5-dieen-2-ol-l-on, 10 (e) 3.5.5-trimethyl-cyclohex-3-een-l-yl acetaat, (f) 3.5.5-trimethyl-4-hydroxy-4-/ but-I-een-3-on_/-cyclohex- 2-een-l-on, (g) 3.5.5-trimethyl-2-hydroxy-cyclohex-2-een-l.4-dion en (h) 3.5.5-trimethyl-cyclohex-2-een-2-ol-1-on, toevoegt.A method for improving, enhancing or modifying the organoleptic properties of a tobacco product, characterized in that it contains at least 5 compounds selected from (a) 3.5.5-trimethyl-cyclohex-2-en-4- ol-1-one, (b) 3.5.5-trimethyl-2.3-epoxy-cyclohexane-1,4-dione, (c) 2.6.6-trimethyl-cyclohex-2-en-4-ol-1-one, (d) 4.4.6-trimethylcyclohexa-2,5-dien-2-ol-l-one, 10 (e) 3.5.5-trimethyl-cyclohex-3-en-1-yl acetate, (f) 3.5.5-trimethyl -4-hydroxy-4- / but-1-en-3-one-/ -cyclohex-2-en-1-one, (g) 3.5.5-trimethyl-2-hydroxy-cyclohex-2-en-1. 4-dione and (h) 3.5.5-trimethyl-cyclohex-2-en-2-ol-1-one. 2. Tabak of tabaksprodukt, waaraan een kleine maar aroma-modificerende hoeveelheid van ten minste ëën verbinding als genoemd in conclusie 1 is toegevoegd.Tobacco or tobacco product to which a small but flavor-modifying amount of at least one compound as defined in claim 1 has been added. 3. Werkwijzen als beschreven in de beschrijving en/of voorbeelden. 20 8104371 Sa· · ·»*' \ > + ^X^O-NRj .Λ* ïQ jÖu V° 2 3 '4 ° -A. , halogeen ^ Λ X ' u u 0 # HO TT x O O _B_ H ’ ~ O^V^ O o · · γ ;:.' keto-enol dlketon FIRMENICH S.A. te Genève, Zwitserland 81043713. Methods as described in the description and / or examples. 20 8104371 Sa · · · »* '\> + ^ X ^ O-NRj .Λ * ïQ jÖu V ° 2 3' 4 ° -A. , halogen ^ Λ X 'u u 0 # HO TT x O O _B_ H' ~ O ^ V ^ O o · · γ;:. ' keto-enol dlketone FIRMENICH S.A. Geneva, Switzerland 8104371
NL8104371A 1971-01-19 1981-09-23 Flavouring of tobacco prods. - with tri:methyl-cyclohexene derivs. NL8104371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL8104371A NL8104371A (en) 1971-01-19 1981-09-23 Flavouring of tobacco prods. - with tri:methyl-cyclohexene derivs.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CH77371 1971-01-19
CH77371A CH552951A (en) 1971-01-19 1971-01-19 Tobacco, food and beverages - aromatised by treatment with amides, esters, ketones and phenol derivs
CH915671A CH549955A (en) 1971-06-23 1971-06-23 Tobacco, food and beverages - aromatised by treatment with amides, esters, ketones and phenol derivs
CH915671 1971-06-23
CH38072 1972-01-11
CH38072A CH549956A (en) 1972-01-11 1972-01-11 FLAVORING COMPOSITION AND ITS USE.
NL8104371A NL8104371A (en) 1971-01-19 1981-09-23 Flavouring of tobacco prods. - with tri:methyl-cyclohexene derivs.
NL8104371 1981-09-23

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