Perfumes and fragrances

In flavor formulations, vanillin is used widely either as a sweetener or as a flavor enhancer, not only in imitation vanilla flavor, but also in butter, chocolate, and aU. types of fmit flavors, root beer, cream soda, etc. It is widely acceptable at different concentrations 50—1000 ppm is quite normal in these types of finished products. Concentrations up to 20,000 ppm, ie, one part in fifty parts of finished goods, are also used for direct consumption such as toppings and icings. Ice cream and chocolate are among the largest outlets for vanillin in the food and confectionery industries, and their consumption is many times greater than that of the perfume and fragrance industry. 

Pd supported overlarge-pore tridimensional acidic zeolites such as HFAU are the more active and selective catalysts for the synthesis of bulkier ketones. Thus, in a 0.2% Pd-HFAU catalyst, yield and selectivity from cyclohexanone of 23 and 75% can be obtained in cyclohexylcyclohexanone synthesis. Furthermore, the S5mthesis of aldehydes can only be made selective by joining the hydrogenating metaUic sites (Pd) to basic sites (instead of acidic sites). Thus, 2-ethylhexanal, which is a component of perfumes and fragrances, can be synthesized with high yield and selectivity (64 and 91%, respectively) on a PdKX zeolite. Much lower yields and selectivities are obtained over nonzeolitic materials, such as Pd/MgO. 

The influence of odors such as perfumes and fragrances on human behavior is assumed to he acquired, and the responses elicited depend on the often complex previous social experiences. The response will be altered if a laboratory experiment eliminates contextual stimuli (Kirk-Smith and Booth, 1987). Social odors include those of the well-known security blankets in toddlers, familiarly scented bed sheets in new surroundings, and treating insomnia with mother s axillary odor on handkerchief. Removal of bad body odors (diet, metabolism defects) that disrupt interpersonal harmony appears to be universal. 

Otherwise, by impregnating a Pd precursor onto a basic K-exchanged FAU zeolite a highly selective bifunctional catalyst is obtained for the low-pressure one-step synthesis of 2-ethylhexanal (a component of perfumes and fragrances) from M-butyraldehydc and H2 in a fixed-bed reactor/12,131 Under optimum reaction... 

Perfumes and fragrances can be complexed with cyclodextrins. On application to the skin, the perfume is released over a longer time than perfume applied to the skin in a non-complexed form. Some perfumes are irritating to the skin. Because the perfume is contained within the cavity of the cyclodextrin, contact with the skin is minimized, resulting reduction or elimination of irritation. Moisture and oils in the skin release the perfume slowly, so that the minimum concentration of perfume needed to elicit an irritable response is not reached. 

Specialities Photographic Chemicals Dyes and Pigments Perfumes and Fragrances Adhesives Coatings Food Additives Electronic Chemicals Biocides Nanotechnology... 

Alkylarylethers have pleasant odors and flavours which made them valuable for the perfume and fragrance industries. They are also important precursors of agrochemicals, pharmaceuticals, antioxidants, etc. (32). Thus, anisole which results from phenol methylation is a precursor of Parsol, a solar protector (paragraph 14.2.). Vanillin results from gai acol transformation (3, 32) ... 

Assignee BASF Aktiengesellschaft Utility Perfume and Fragrance Intermediate... 

Alkyl Formate Production. In the past few years, formate esters have become an important class of organic compounds mainly because of their versatility as chemical feedstock (16,36-42), and as raw materials for the perfume and fragrance industry (43-46). Specifically, formate esters (methyl, ethyl, pentyl, etc.) have been used as starting material for the production of aldehydes (36), ketones ( ), carboxylic acids (37-40), and amides ( ). For example, methyl formate can be hydrolyzed to formic acid (39,40) or catalytically isomerized to acetic acid ( ). On the other hand, alkyl formates have been employed in the perfume and fragrance industry in amounts of approximately 1000 to 3000 Ib/year (43—46). Among the formates that have been commonly used for these purposes are octyl ( ), heptyl ( ), ethyl ( ), and amyl ( ) formates. 

Cosmetics and Toiletries skin, dental and hair care products, perfumes and fragrances ... 

Products and Uses An ingredient in perfumes and fragrances, particularly in soaps. Precautions Toxic by inhaling vapor. 

Products and Uses An additive in perfumes and fragrances. It is used as a flavoring and scenting agent. 

Cedarwood oil. Depending on the origin, the following types of cedarwood oil used in the perfume and fragrance industries are distinguished ... 

Monocyclic sesquiterpenes bisabolenes in various oils, e.g. myrrh and limete oil, in perfume and fragrance products balsamic odor... 

Bicyclic sesquiterpenes caryophyllenes in essential oils, as perfume and fragrance products, chewing gum, synthesis of other perfumes typical odor (clove)... 

The reaction of phenol with chloroform and alkali (dichlorocarbene) at 65 to 70 °C gives salicylaldehyde (Reimer-Tiemann synthesis), from which coumarin is produced by reaction with acetic anhydride and sodium acetate at 135 to 155 °C (Perkin reaction). Coumarin is used as a perfume and fragrance. 

Uses Emollient, moisturizer for creams/lolions, bath oils, lipstick, makeup solvent for perfume and fragrance ingreds. solubilizer Features Nonoily skin feel oxidative stability... 

Uses Solubilizer for toiletries, perfumes and fragrances Regulatory SARA 311/312 Immediate Flazard, 313 nonreportable DSL listed Properties Cream-colored soft waxy solid FILB 15.3 flash pt. (Setaflash CC) 93 C pFI 5-8 (10% 1 4 isopropanol/water)... 

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