Perfume bases

CifiHjoO. A yellow liquid b.p. 330°C. The perfume base obtained from the scent glands of the Tibetan musk deer also available by synthesis. 

The sesquiterpenes found in essential oils have low volatilities compared with monoterpenes and so are isolated mainly by steam distillation or extraction, but some are also isolated by distillation or crystallization. Most of the sesquiterpene alcohols are heavy viscous Hquids and many crystallize when they are of high enough purity. Sesquiterpene alcohols are important in perfume bases for their odor value and their fixative properties as well. They are valuable as carriers of woody, balsamic, or heavy oriental perfume notes. 

In some cases, especially when the family is directed more toward Oriental fragrances, the use of vanillin can be up to 5%. These types of perfumes include Spanish fougnre, sweet or fmity chypres, woody Oriental, or spicy Oriental notes. AH the perfumes based on the sweet, warm, and powdery impressions brought by vanillin belong to the great family of the Oriental notes and of the amber notes. Vanillin, when used together with coumarin and nitro-musks, can have a concentration of up to 10%. 

Paifumgrundstoff, m. perfume base, parfumieren, v.t. perfume, scent. 

Schiff base org chem RR C=NR" Any of a class of derivatives of the condensation of aldehydes or ketones with primary amines colorless crystals, weakly basic hydrolyzed by water and strong acids to form carbonyl compounds and amines used as chemical intermediates and perfume bases, in dyes and rubber accelerators, and in liquid crystals for electronics, shif, bas ... 

The ketone is used in perfume bases for soaps, eau de cologne, and detergent compositions. 

Methyl benzoate is used in perfume bases, such as ylang-ylang and tuberose types. 

Another approach to the reproduction of floral notes has come from the work of the creative perfumer based on the use of synthetic materials whose olfactory character may be similar in some respect to that of the flower being copied, whether or not they are known to occur in nature. Many of the floral bases created in this way, although frequently but pale reflections of the flowers themselves, have come to be among the most widely used building blocks of perfumery. 

Because of the trouble that may result in having the "wrong" components in a match, it is generally better to adopt a "linear" technique of composition, that is, to work with singlearoma chemicals and naturals rather than with bases. A classical, widely used base may, however, be used when clearly identified by its characteristic olfactory pattern within the overall perfume. Bases may also be used to give the finishing touch to a nearly completed match or when the aim is not so much a close match as a composition "inspired by" the original. 

The ability of Hedione to combine successfully with many of the most important perfumery materials has been one of the major influences in perfumery over the past 30 years. Nowhere is this better seen than in a group of perfumes based on its relationship with patchouli. Although sometimes classified as chypres, the dominance of floral notes and patchouli, and the comparative lack of musk and animalic notes, other than castoreum, justifies the placing of them in a separate group. 

Thus terpenes (a-pinene, (3-pinene) can be produced from natural turpentine, as is traditionally done by rosin producers such as Hercules, Glidden, or Union Camp in the United States, or on a smaller scale in France by Societe des Derives Resiniques et Terpeniques, DRT. BASF and Hoffmann-La Roche, however, have demonstrated that starting from acetylene or isobutylene, terpene chemicals can be synthetically reproduced. Both companies are able to produce both their vitamins and perfume bases in this way. 

In cosmetics, polyoxyl 35 castor oil is mainly used as a solubilizing agent for perfume bases and volatile oils in vehicles containing 30-50% v/v alcohol (ethanol or propan-2-ol). In hand lotions, it can be used to replace castor oil. 

Use Preparation of perfume bases, acetylenic esters, plastics, plasticizers, pharmaceuticals, wetting agents, medicinals, and organic synthesis. 

Use Softening agent, plasticizer, and perfume base. High absorption of UV light, low water solubility, low evaporation rate, and good solvent action make it useful in light-stable coatings and sunscreen preparations. 

Use Manufacture of esters for solvents, flavors and perfume bases, disinfecting agent, varnish, deliming hides, tanning agent. 

Use Rubber accelerators dyes (phenylene blue and naphthol blue) chemical intermediate liquid crystals in electronic display systems perfume base. 

Use Solvent and plasticizer for nitrocellulose and natural resins, softener, paint removers, agglutinant, perfume base, food additive (not over 0.25%). 

Perfume bases, blending and compounding Perfumes, natural and synthetic Rouge, cosmetic Sachet... 

Although synthetic flavor and fragrance materials are produced on industrial scales, naturally occurring raw materials continue to be essential, important ingredients in the manufacture of flavor and fragrance compositions for several reasons. First, the compositions and sensory natures of natural products are often too complex to be reproduced by combinations of synthetic fragrance substances. Second, the characteristic flavor and fragrance substances of a particular product often cannot be synthesized at a competitive price. Third, the use of natural materials in the production of certain flavor compositions is compulsory. Moreover, a continous demand for perfumes based on natural materials is still observed. 

Saligenol, an intermediate in the synthesis of a variety of products, and a particularly key intermediate in the preparation of coumarin [1], an important perfume base (Eq. 2), is the best example of the industrial synthesis of this type of compound. 

Propionic acid is used in the prodnction of propionates used as mold inhibitors and preservatives for grains and wood chips, in the manufacture of fruit flavors and perfume bases, and as an esterifying agent. 

Products and Uses Used as a disinfecting agent, solvent, and seasoning. It is in varnish, flavorings, and perfume bases. 

Further progress can be easily envisaged. For example, attempts to create perfumes based on suspended capsules go back to the early 1970s. Now formulation in water of sol-gel-entrapped perfumes of tunable scent to avoid skin irritation becomes possible. Stabilized natural fragrances replacing toxic synthetic musks are also forecasted herein. In particular, sol-gel microencapsulated essential oils will replace nonbiodegradable musks as a consequence of the chemical and physical stabilization of nice fragrances that thus far could not be widely commercialized due to weU-known poor chemical stability. 

Uses Mfg. of esters for solvents, flavors, perfume bases disinfectant preservative varnish deliming hides tanning agent buffer in cosmetics synthetic flavoring agent in foods and pharmaceuticals... 

Adipic acid Butyl alcohol N-Hydroxysuccinic acid Isoborneol Isostearic acid PEG-6 acrylate PEG-9 acrylate Perchloric acid Succinic anhydride Xylene sulfonic acid ester mfg., flavoring n-Butyric acid ester mfg., flavoring agents Isobutyric acid Phenylacetyl chloride ester mfg., fragrances n-Butyric acid ester mfg., perfume bases Isobutyric acid ester mfg., plasticizers PPG-2 methyl ether ester mfg., solvents Isobutyric acid ester modifier Dimethyloctanyl acetate ester oil mfg., complex Isooctanoic acid ester synthesis Isocetyl alcohol... 

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