FR2742335A1 - PROCESS FOR OBTAINING PERFUMING COMPOSITIONS AND PERFUMED PRODUCTS AND PRODUCTS THUS OBTAINED - Google Patents
PROCESS FOR OBTAINING PERFUMING COMPOSITIONS AND PERFUMED PRODUCTS AND PRODUCTS THUS OBTAINED Download PDFInfo
- Publication number
- FR2742335A1 FR2742335A1 FR9514762A FR9514762A FR2742335A1 FR 2742335 A1 FR2742335 A1 FR 2742335A1 FR 9514762 A FR9514762 A FR 9514762A FR 9514762 A FR9514762 A FR 9514762A FR 2742335 A1 FR2742335 A1 FR 2742335A1
- Authority
- FR
- France
- Prior art keywords
- hydroxybenzaldehyde
- products
- compositions
- isopropoxy
- perfumed
- 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.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000012437 perfumed product Substances 0.000 title claims description 7
- MUXFIYORPMXGNT-UHFFFAOYSA-N 4-hydroxy-3-propan-2-yloxybenzaldehyde Chemical compound CC(C)OC1=CC(C=O)=CC=C1O MUXFIYORPMXGNT-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002304 perfume Substances 0.000 claims abstract description 19
- CBKYEFKMNADVGO-UHFFFAOYSA-N 4-hydroxy-3-propoxybenzaldehyde Chemical compound CCCOC1=CC(C=O)=CC=C1O CBKYEFKMNADVGO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 11
- 239000003205 fragrance Substances 0.000 claims abstract description 6
- 239000004615 ingredient Substances 0.000 claims description 7
- 239000003599 detergent Substances 0.000 claims description 4
- 239000006210 lotion Substances 0.000 claims description 4
- 239000002453 shampoo Substances 0.000 claims description 3
- 239000000344 soap Substances 0.000 claims description 3
- 239000002386 air freshener Substances 0.000 claims description 2
- 230000001166 anti-perspirative effect Effects 0.000 claims description 2
- 239000003213 antiperspirant Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 239000002781 deodorant agent Substances 0.000 claims description 2
- 239000002979 fabric softener Substances 0.000 claims description 2
- 239000000499 gel Substances 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 235000012222 talc Nutrition 0.000 claims description 2
- RGHHSNMVTDWUBI-UHFFFAOYSA-N para-hydroxybenzaldehyde Natural products OC1=CC=C(C=O)C=C1 RGHHSNMVTDWUBI-UHFFFAOYSA-N 0.000 claims 1
- 239000000047 product Substances 0.000 description 15
- 150000001875 compounds Chemical class 0.000 description 5
- 239000007788 liquid Substances 0.000 description 3
- BWVZAZPLUTUBKD-UHFFFAOYSA-N 3-(5,6,6-Trimethylbicyclo[2.2.1]hept-1-yl)cyclohexanol Chemical compound CC1(C)C(C)C2CC1CC2C1CCCC(O)C1 BWVZAZPLUTUBKD-UHFFFAOYSA-N 0.000 description 2
- 235000009499 Vanilla fragrans Nutrition 0.000 description 2
- 244000263375 Vanilla tahitensis Species 0.000 description 2
- 235000012036 Vanilla tahitensis Nutrition 0.000 description 2
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 2
- UWKAYLJWKGQEPM-LBPRGKRZSA-N linalyl acetate Chemical compound CC(C)=CCC[C@](C)(C=C)OC(C)=O UWKAYLJWKGQEPM-LBPRGKRZSA-N 0.000 description 2
- HNUALPPJLMYHDK-UHFFFAOYSA-N C[CH]C Chemical compound C[CH]C HNUALPPJLMYHDK-UHFFFAOYSA-N 0.000 description 1
- 235000005979 Citrus limon Nutrition 0.000 description 1
- 244000131522 Citrus pyriformis Species 0.000 description 1
- 240000002505 Pogostemon cablin Species 0.000 description 1
- 235000011751 Pogostemon cablin Nutrition 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229960000956 coumarin Drugs 0.000 description 1
- 235000001671 coumarin Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- UWKAYLJWKGQEPM-UHFFFAOYSA-N linalool acetate Natural products CC(C)=CCCC(C)(C=C)OC(C)=O UWKAYLJWKGQEPM-UHFFFAOYSA-N 0.000 description 1
- 125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- SATCULPHIDQDRE-UHFFFAOYSA-N piperonal Chemical compound O=CC1=CC=C2OCOC2=C1 SATCULPHIDQDRE-UHFFFAOYSA-N 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 1
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 1
- 235000012141 vanillin Nutrition 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/0061—Essential oils; Perfumes compounds containing a six-membered aromatic ring not condensed with another ring
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/50—Perfumes
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Fats And Perfumes (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
Abstract
Description
PROCEDE D'OBTENTION DE COMPOSITIONS PARFUMANTES ET DE
PRODUITS PARFUMES ET PRODUITS AINSI OBTENUS.PROCESS FOR OBTAINING PERFUMING COMPOSITIONS AND
PERFUMED PRODUCTS AND PRODUCTS THUS OBTAINED.
La présente invention a trait à un procédé d'obtention de compositions parfumantes et de produits parfumés et produits ainsi obtenus. The present invention relates to a process for obtaining perfume compositions and perfumed products and products thus obtained.
La présente invention vise en particulier leur emploi dans le domaine de la parfumerie. Lesdits composés possèdent des propriétés olfactives intéressantes et peuvent être employés, entre autres, pour la préparation de compositions parfumantes et de produits parfumés. The present invention relates in particular to their use in the field of perfumery. Said compounds have interesting olfactory properties and can be used, inter alia, for the preparation of perfume compositions and perfumed products.
L'industrie de la parfumerie est constamment à la recherche de produits qui par l'originalité, le volume et la puissance de leur fragrance puissent conférer aux compositions dans lesquelles elles interviennent, un caractère tout à fait particulier. The perfume industry is constantly looking for products which, by the originality, the volume and the power of their fragrance, can give the compositions in which they are involved, a very special character.
II a maintenant été trouvé que les aldéhydes tels que le 3-n-propoxy-4 hydroxybenzaldéhyde et/ou le 3-isopropoxy-4-hydroxybenzaldéhyde présentaient des propriétés olfactives originales. It has now been found that aldehydes such as 3-n-propoxy-4 hydroxybenzaldehyde and / or 3-isopropoxy-4-hydroxybenzaldehyde have original olfactory properties.
II est à noter qu'il est impossible pour l'Homme du Métier de prévoir si un composé chimique donné possédera ou non, une odeur intéressante du point de vue olfactif susceptible d'être retenue dans le domaine de la parfumerie. It should be noted that it is impossible for a person skilled in the art to predict whether or not a given chemical compound will have an interesting odor from the olfactory point of view capable of being retained in the field of perfumery.
Plus spécifiquement, la présente invention a pour objet un procédé pour l'obtention de compositions parfumantes, de substances et produits parfumés destinés à la parfumerie caractérisé par le fait que l'on ajoute aux constituants usuels de ces compositions, substances et produits finis, une quantité efficace de 3-n-propoxy-4-hydroxybenzaldéhyde et/ou de 3-isopropoxy-4-hydroxybenzaldéhyde. More specifically, the subject of the present invention is a process for obtaining perfume compositions, substances and perfumed products intended for perfumery, characterized in that one adds to the usual constituents of these compositions, substances and finished products, a effective amount of 3-n-propoxy-4-hydroxybenzaldehyde and / or 3-isopropoxy-4-hydroxybenzaldehyde.
La présente invention a encore pour objet des compositions parfumantes, substances et produits parfumés caractérisés par le fait qu'ils comprennent, à titre de principe actif ayant une influence sur l'odeur, une quantité efficace de 3n-propoxy-4-hydroxybenzaldéhyde et/ou de 3-isopropoxy-4-hydroxybenzaldéhyde. The subject of the present invention is also perfume compositions, perfumed substances and products characterized in that they comprise, as active principle having an influence on the odor, an effective amount of 3n-propoxy-4-hydroxybenzaldehyde and / or 3-isopropoxy-4-hydroxybenzaldehyde.
L'invention réside donc dans une nouvelle utilisation de 3-n-propoxy-4hydroxybenzaldéhyde et/ou de 3-isopropoxy-4-hydroxybenzaldéhyde, comme ingrédient parfumant. The invention therefore resides in a new use of 3-n-propoxy-4hydroxybenzaldehyde and / or 3-isopropoxy-4-hydroxybenzaldehyde, as a perfuming ingredient.
Les ingrédients parfumants, objet de l'invention répondent plus particulièrement à la formule générale (I) suivante:
dans ladite formule (I), R représente un radical n-propyle ou isopropyle.The perfuming ingredients which are the subject of the invention more particularly correspond to the following general formula (I):
in said formula (I), R represents an n-propyl or isopropyl radical.
Les composés de formule (I) exhalent une forte odeur de vanille, naturelle très intéressante et différente de celle de la vanilline. The compounds of formula (I) exhale a strong odor of vanilla, very interesting natural and different from that of vanillin.
Ce sont des produits qui peuvent être utilisés, comme ingrédients parfumants, dans les compositions parfumantes, substances et produits parfumés. These are products which can be used, as perfume ingredients, in perfume compositions, substances and perfume products.
Par "compositions parfumantes", on désigne des mélanges de divers ingrédients tels que solvants, supports solides ou liquides, fixateurs, composés odorants divers, etc..., dans lesquels sont incorporés le 3-n-propoxy-4hydroxybenzaldéhyde et/ou le 3-isopropoxy-4-hydroxybenzaldéhyde de formule (I), lesquels sont utilisés pour procurer à divers types de produits finis, la fragrance recherchée. By "perfuming compositions" is meant mixtures of various ingredients such as solvents, solid or liquid carriers, fixatives, various odorous compounds, etc., in which 3-n-propoxy-4hydroxybenzaldehyde and / or 3 are incorporated. -isopropoxy-4-hydroxybenzaldehyde of formula (I), which are used to provide various types of finished products, the desired fragrance.
Les bases pour parfum constituent des exemples préférés de compositions parfumantes dans lesquelles le 3-n-propoxy-4-hydroxybenzaldéhyde et/ou le 3isopropoxy-4-hydroxybenzaldéhyde de formule (I) peuvent être avantageusement utilisés. Perfume bases constitute preferred examples of perfume compositions in which 3-n-propoxy-4-hydroxybenzaldehyde and / or 3isopropoxy-4-hydroxybenzaldehyde of formula (I) can be advantageously used.
Les eaux de toilettes, les lotions après rasage, les parfums, les savons, les gels de bain ou de douche ou les produits déodorants ou antiperspirants, qu'ils soient sous forme de sticks ou de lotions constituent des exemples de substances ou de produits finis dans lesquels le 3-n-propoxy-4 hydroxybenzaldéhyde et/ou le 3-isopropoxy-4-hydroxybenzaldéhyde apportent leur note originale. Toilet waters, aftershave lotions, perfumes, soaps, bath or shower gels or deodorant or antiperspirant products, whether in the form of sticks or lotions, are examples of substances or finished products. in which 3-n-propoxy-4 hydroxybenzaldehyde and / or 3-isopropoxy-4-hydroxybenzaldehyde provide their original note.
Ils peuvent intervenir aussi dans les shampooings et dans les produits capillaires de tout type. They can also be used in shampoos and in hair products of all types.
Ils peuvent aussi parfumer les talcs ou poudres de toute nature. They can also perfume talcs or powders of any kind.
Ils peuvent également convenir pour les désodorisants d'air ambiant ou tout produit d'entretien. They can also be suitable for room air fresheners or any cleaning product.
Un autre exemple de compositions dans lesquelles lesdits composés peuvent être introduits de façon avantageuse, est représenté par les compositions détergentes usuelles. Ces compositions comprennent généralement un ou plusieurs des ingrédients suivants : agents tensio-actifs anioniques, cationiques ou amphotères, agents de blanchiment, azurants optiques, charges diverses, agents anti-redéposition. La nature de ces divers composants n'est pas critique et le 3-n-propoxy-4-hydroxybenzaldéhyde et/ou le 3-isopropoxy-4-hydroxybenzaldéhyde de formule (I) peuvent être ajoutés à tout type de composition détergente. Ils peuvent être introduits dans les adoucissants pour textiles, sous forme liquide ou dans les compositions déposées sur support, le plus souvent un non-tissé, destinées à être employées dans les sèche-linges. Another example of compositions in which said compounds can be advantageously introduced, is represented by the usual detergent compositions. These compositions generally comprise one or more of the following ingredients: anionic, cationic or amphoteric surfactants, bleaching agents, optical brighteners, various fillers, anti-redeposition agents. The nature of these various components is not critical and 3-n-propoxy-4-hydroxybenzaldehyde and / or 3-isopropoxy-4-hydroxybenzaldehyde of formula (I) can be added to any type of detergent composition. They can be introduced into fabric softeners, in liquid form or in compositions deposited on a support, most often a nonwoven, intended for use in tumble dryers.
La teneur des compositions selon l'invention en 3-n-propoxy-4 hydroxybenzaldéhyde et/ou de 3-isopropoxy-4-hydroxybenzaldéhyde de formule (I) exprimée en pourcentage en poids dans la composition considérée dépend de la nature de ladite composition (base pour parfum ou eau de toilette par exemple) et de la puissance et de la nature de l'effet recherché au niveau produit final. II va de soi que dans une base pour parfum la teneur en 3-n-propoxy-4 hydroxybenzaldéhyde et/ou de 3-isopropoxy-4-hydroxybenzaldéhyde de formule (I) peut être très importante, par exemple supérieure à 50 % en poids et peut atteindre 90 % en poids tandis que dans un parfum, une eau de toilette ou une lotion après rasage, cette teneur pourra être très inférieure à 50 % en poids. The content of the compositions according to the invention in 3-n-propoxy-4 hydroxybenzaldehyde and / or 3-isopropoxy-4-hydroxybenzaldehyde of formula (I) expressed as a percentage by weight in the composition considered depends on the nature of said composition ( base for perfume or eau de toilette for example) and the power and nature of the desired effect at the final product level. It goes without saying that in a perfume base the content of 3-n-propoxy-4 hydroxybenzaldehyde and / or of 3-isopropoxy-4-hydroxybenzaldehyde of formula (I) can be very high, for example greater than 50% by weight. and can reach 90% by weight while in a perfume, eau de toilette or after shave lotion, this content may be much less than 50% by weight.
La teneur en 3-n-propoxy-4-hydroxybenzaldéhyde et en 3-isopropoxy-4 hydroxybenzaldéhyde peut être dans les compositions détergentes, notamment ménagères ou dans des savons, de l'ordre de 1 à 2%. The content of 3-n-propoxy-4-hydroxybenzaldehyde and of 3-isopropoxy-4 hydroxybenzaldehyde can be in detergent compositions, in particular household or in soaps, of the order of 1 to 2%.
II peut également intervenir dans les shampooings parfumés à raison de 0,5 à 2 % ou pour parfumer tout produit capillaire. It can also be used in scented shampoos at a rate of 0.5 to 2% or to scent any hair product.
Ainsi la limite inférieure de la teneur en 3-n-propoxy-4-hydroxybenzaldéhyde et en 3-isopropoxy-4-hydroxybenzaldéhyde de formule (I) peut être celle qui provoque une modification perceptible à l'odorat de la fragrance ou de la note du produit fini. Dans certains cas, cette teneur minimale peut être de l'ordre de 0,01 % en poids. On peut évidemment faire appel à des teneurs non comprises dans les limites des teneurs indiquées ci-avant sans pour autant sortir du cadre de la présente invention. Thus the lower limit of the content of 3-n-propoxy-4-hydroxybenzaldehyde and of 3-isopropoxy-4-hydroxybenzaldehyde of formula (I) may be that which causes a perceptible change in the smell of the fragrance or the note. of the finished product. In certain cases, this minimum content can be of the order of 0.01% by weight. It is obviously possible to use contents which are not within the limits of the contents indicated above without thereby departing from the scope of the present invention.
Le 3-n-propoxy-4-hydroxybenzaldéhyde et le 3-isopropoxy-4-hydroxy benzaldéhyde sont des produits connus. Ils peuvent être préparés sans difficulté selon les procédés décrits dans l'état de la technique, notamment selon un procédé analogue à celui décrit dans l'encyclopédie "Ullmann's Encyclopedia of
Industrial Chemistry, 11, pp. 200 (1988)".3-n-propoxy-4-hydroxybenzaldehyde and 3-isopropoxy-4-hydroxy benzaldehyde are known products. They can be prepared without difficulty according to the methods described in the prior art, in particular according to a method analogous to that described in the encyclopedia "Ullmann's Encyclopedia of
Industrial Chemistry, 11, pp. 200 (1988) ".
On donne ci-après un exemple de réalisation de l'invention. An exemplary embodiment of the invention is given below.
Exemple 1
L'odeur de 3-isopropoxy-4-hydroxybenzaldéhyde est une odeur de vanille, naturelle.Example 1
The smell of 3-isopropoxy-4-hydroxybenzaldehyde is a natural vanilla smell.
On donne ci-aprés un exemple de mis en oeuvre du 3-isopropoxy-4 hydroxybenzaldéhyde dans une composition parfumante sous forme liquide:
20 % de 3-isopropoxy-4-hydroxybenzaldéhye
15 % de coumarine
20 % d'essence de citron
1 % d'essence de patchouli
3 % d'héliotropine
3 % d'lBCH (isobornylcyclohexanol)
38 % d'acétate de linalyle
L'utilisation de 3-isopropoxy-4-hydroxybenzaldéhyde permet d'obtenir une note ambrée. An example of the use of 3-isopropoxy-4 hydroxybenzaldehyde in a perfuming composition in liquid form is given below:
20% 3-isopropoxy-4-hydroxybenzaldehye
15% coumarin
20% lemon essence
1% patchouli essence
3% heliotropin
3% IBCH (isobornylcyclohexanol)
38% linalyl acetate
The use of 3-isopropoxy-4-hydroxybenzaldehyde provides an amber note.
Claims (7)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9514762A FR2742335B1 (en) | 1995-12-13 | 1995-12-13 | PROCESS FOR OBTAINING PERFUMING COMPOSITIONS AND PERFUMED PRODUCTS AND PRODUCTS THUS OBTAINED |
| PCT/FR1996/001995 WO1997021794A1 (en) | 1995-12-13 | 1996-12-13 | Method for preparing fragrance compositions, uses thereof and resulting products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9514762A FR2742335B1 (en) | 1995-12-13 | 1995-12-13 | PROCESS FOR OBTAINING PERFUMING COMPOSITIONS AND PERFUMED PRODUCTS AND PRODUCTS THUS OBTAINED |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2742335A1 true FR2742335A1 (en) | 1997-06-20 |
| FR2742335B1 FR2742335B1 (en) | 1998-02-20 |
Family
ID=9485451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9514762A Expired - Fee Related FR2742335B1 (en) | 1995-12-13 | 1995-12-13 | PROCESS FOR OBTAINING PERFUMING COMPOSITIONS AND PERFUMED PRODUCTS AND PRODUCTS THUS OBTAINED |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2742335B1 (en) |
| WO (1) | WO1997021794A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201817785D0 (en) | 2018-10-31 | 2018-12-19 | Givaudan Sa | Organic compounds |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0031253A1 (en) * | 1979-12-21 | 1981-07-01 | Sumitomo Chemical Company, Limited | Process for preparing 3,4-substituted benzaldehydes |
| EP0137419A2 (en) * | 1983-10-07 | 1985-04-17 | L. GIVAUDAN & CIE Société Anonyme | Perfume compositions containing benzyl ethers |
-
1995
- 1995-12-13 FR FR9514762A patent/FR2742335B1/en not_active Expired - Fee Related
-
1996
- 1996-12-13 WO PCT/FR1996/001995 patent/WO1997021794A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0031253A1 (en) * | 1979-12-21 | 1981-07-01 | Sumitomo Chemical Company, Limited | Process for preparing 3,4-substituted benzaldehydes |
| EP0137419A2 (en) * | 1983-10-07 | 1985-04-17 | L. GIVAUDAN & CIE Société Anonyme | Perfume compositions containing benzyl ethers |
Non-Patent Citations (2)
| Title |
|---|
| "Ullmann's Encyclopedia of Industrial Chemistry", 1988, XP000568874 * |
| K.BAUER ET AL.: "Common Fragrance and Flavor Materials", 1985, VCH, WEINHEIM, XP002010133 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2742335B1 (en) | 1998-02-20 |
| WO1997021794A1 (en) | 1997-06-19 |
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| Date | Code | Title | Description |
|---|---|---|---|
| CD | Change of name or company name | ||
| ST | Notification of lapse |