EP3471695A1

EP3471695A1 - Use of certain compounds to modify, reduce, or eliminate off-notes

Info

Publication number: EP3471695A1
Application number: EP16731572.0A
Authority: EP
Inventors: Nicole Schulze; Celina PETERS
Original assignee: Symrise AG
Current assignee: Symrise AG
Priority date: 2016-06-21
Filing date: 2016-06-21
Publication date: 2019-04-24
Also published as: BR112018076426A2; MX2018015852A; US20190321273A1; WO2017220127A1; JP2019518773A; CN109310604A

Abstract

The invention relates primarily to the use of one or more compounds having formula (I) X_kY_lZ_mO_n, as described herein, to modify, reduce, or eliminate one or more off-note(s) of one or more substance(s) selected from the group (G1), as described herein, by chemically converting the one or more substance(s) of the group (G1) and thus modifying, reducing, or eliminating the one or more off-note(s), in a composition (Z1), which contains one or more substances selected from the group (G2), as described herein, in addition to one or more compounds of formula (I) and the one or more substances of the group (G1). The invention further relates to new methods for modifying, reducing, or eliminating one or more off-note(s) and new compositions obtained thereby.

Description

Use of certain compounds to modify, reduce or eliminate miss notes

(1) The present invention primarily relates to the use of one or more compound (s) of the formula (I) (as described herein) for modifying, reducing or eliminating one or more false notes of one or more substances selected from the group (G1) as described herein, by chemical transformation of the substance (s) of the group (G1) and thereby modifying, reducing or eliminating the false note (s), in a composition (Z1), in addition to one or more Compounds of the formula (I) and the substance (s) of the group (G1) additionally contain one or more substances selected from the group (G2) as described herein. In addition, the present invention relates to novel methods of modifying, reducing or eliminating one or more false notes and novel compositions thereby obtained. Further aspects and preferred embodiments of the present invention will become apparent from the following description and in particular the appended claims. (2) The compounds of the formula (I) described herein are advantageously suitable for the pretreatment for improving the sensory properties of unscented or unflavoured raw materials or compositions used to produce perfumed or flavored cosmetics, personal care, oral care, oral products Care, Household, Air fresheners, Fine Fragrance, Perfumes, Foods, Supplements, Flavors, Pet food, Pharmaceutical agents are used.

(3) Unperfumed or unflavoured raw materials / ingredients and industrially produced compositions / formulations / preparations often have an intrinsic odor or aroma, which is usually undesirable and as a false note (off-flavor, off-note, off-odor, malodour, malodor, taste flaw, bad taste or off-flavor). This false note resulting from the raw materials / ingredients often has an effect on the sensory properties and the profile of the perfumed or flavored products / final products / preparations produced therefrom. The sensory properties, or the fragrance or aroma of a product / end product / preparation, are critical quality features that may be decisive for the purchase or market, and an undesirable false note would adversely affect the quality of the perfumed or flavored product / final product. Therefore, there is a constant interest in reducing or eliminating the undesirable miscarriage and thus improving the quality of the products.

(4) One possible way to reduce the unwanted false note is the chemical modification or reaction in which the miscarriage-causing compound (s) interact with one or more agents and are converted, resulting in a reduction of the sensory-sensed Impression of the unwanted false note (s) leads. The following sections describe known methods and methods that use the principle of chemical modification. (5) US5789010 describes a method for reducing unwanted aldehyde components in fats or triglycerides or their derivatives by the addition of a ship see base, in which the unwanted aldehyde component is bound, thereby releasing a new desired aldehyde component , The disadvantage of this process is that the liberated new aldehydes can influence the scent impression of the desired perfuming. Furthermore, Schiff's bases are often colored and can lead to undesired discoloration of the final product.

(6) GB 1596752 describes a chemical method for the reduction of undesired carboxylic acids by means of alcoholamines, which form non-volatile complexes with the undesired carboxylic acids and thereby reduce the intensity of the false note caused by the carboxylic acids.

(7) The reduction or removal of the bad smell of H ₂ S in cresol soap solution by the chemical reaction of H ₂ S with H ₂ 0 ₂ to elemental sulfur is also an already known method (CN1 100259A).

(8) The use of acids can reduce or prevent the release of amine false notes, as described in WO2006131739.

(9) Sulfur-containing and nitrogen-containing off-odors can be chemically converted and neutralized by a complex of dialkimone metal and an organic polyfunctional chelating ligand in the presence of oxygen, which releases active metal ions in an aqueous, buffered environment (US5534249 (A)). Thus bad odors can be neutralized by carpet cleaners, in container toilets or by ammonia.

(10) Olefinic components contaminated with sulfurous odors and mixtures of, for example, turpentine, cyclohexene, dipentene, pine oil and anethole can be deodorized by the method described in US3909395 (A) using peralkanoic acids such as peracetic acid by oxidizing and post-treating the sulfur-containing malodor . by optionally washing steps, pH neutralization or steam distillation.

(1 1) The document KR 100447305 B1 describes a deodorant with malodor-removing properties and no harmful effect on humans, wherein the bad odors due to oxidation, reduction, neutralization and absorption by means of a mixture of 6.7-6.8 wt % Eucalyptus extract, 0.4-0.6 weight percent stabilized chlorine dioxide, 0.2-0.3 weight percent zeolite, 0.6-0.8 weight percent aluminum sulfates, 0.04 -0.05% by weight of acetic acid and 89.54-93.97% by weight of water.

(12) The odors containing sulfur and nitrogen can be controlled by the use of dialkyl fumarates, which react with the corresponding odor molecules, the reaction products hardly having a noticeable odor (DE 2335091 A1).

(13) The document US 7588790 B2 describes a method for reducing or removing the undesirable, bitter Fehlnote in potassium lactate by the use of activated carbon, wherein the activated carbon remains as a residue or is separated or filtered off.

(14) Reduction or elimination of undesirable scores can be achieved by polymers that have been imprinted on unwanted molecules before application and then bind them (EP0925776A2). These polymers can be used in various applications and products. In this process, the polymers remain as residue or are separated in a subsequent step.

(15) A procedure routinely used to remove unwanted false notes is the distillation, optionally with the addition of further compounds and auxiliaries, such as bases or alkaline earth metals (DE 180499; US Pat. No. 2,801,209). Distillation steps for processing require a lot of energy and large distillation apparatus for industrial production. (16) Another common approach is the masking or masking of unwanted false notes by the addition of fragrances or flavorings and neutralizers or modulators, as described for example in the following documents: WO 2002085294, EP2133102; No. 5,559,271, US Pat. No. 5,001,805, WO 0143784. A disadvantage of this method is that the added scents or aroma substances for masking or masking influence the profile of the selected flavoring or perfuming and can lead to a changed profile and thus to altered sensory properties. These changes are often not desired or accepted.

(17) There is a continuing need in the market for ways to improve the quality and thus the sensory properties of products and preparations.

(18) The primary object of the present invention was therefore to develop a simple solution with which the sensory perceived intensity of the undesired false note (s) of certain substances and compositions can be modified, reduced or even completely eliminated. The solution should influence as little (later) perfuming or flavoring as possible. The solution itself should preferably not introduce any new / additional significant sensory intensities and not mask or mask the false note merely through the use of fragrance or flavor. Color changes are also undesirable, as they can lead to discoloration of the end product / preparation, which in turn could adversely affect the quality or acceptance. Other objects emerge from the following description and in particular the appended claims.

(19) The primary object is achieved by the use of one or more compounds of the formula (I)

(IX where X = N, Na, K, Mg or Ca, with k = 0, 1 or 2, Y = C or S, with I = 0, 1, 2 or 3, and Z = H, with m = 0, 1 , 2, 3, 4, 5, 6, 7 or 8, and n = 2, 3, 4, 5, 6, 7 or 8, preferably with Z = H, with m = 0, 1, 2, 3, 4, 5 or 6, and n = 2, 3, 4, 5 or 6, for modifying, reducing or eliminating one or more false note (s) of one or more substances selected from the group consisting of aldehydes (G1), Ketones, unsaturated hydrocarbons and amines, by chemical transformation of the substance (s) of the group (G1) and thereby modifying, reducing or eliminating the false note (s), in a composition (Z1) containing, in addition to one or more compounds, the Formula (I) and the substance (s) of the group (G1) also one or more substances selected from the group (G2) consisting of alcohols, carboxylic acids, esters, carboxylates, mineral salts, saturated hydrocarbons, silicones, quaternary ammonium compounds , Sulphates and sulfur contains ureestern.

(20) For the purposes of the present invention, chemical transformation of the substance (s) of the group (G1) is preferably understood to mean that the substance (s) selected from the group (G1) in (a) substance (e ) which are / are less volatile and / or have a higher threshold of perception and / or a more pleasing / desired odor or a more pleasant / desired aroma. In the context of the present invention, substances of the group (G1) are preferably converted into their alcohols, oxides, carboxylic acids, salts, esters or oligomers or polymers. With regard to the example section below, reference may be made by way of example to the compound trimethylamine (gaseous, melting point -1 17 ° C., boiling point 2.9 ° C., vapor pressure of 1887 hPa (20 ° C.), unpleasant fish odor), which in the In the context of the present invention, preference is given to converting it into trimethylamine oxide (solid, melting point 213 ° C., odorless). In addition to the compounds of the formula (I) given in the Examples, numerous other compounds of the formula (I) were analyzed in the course of extensive investigations with regard to their usability according to the invention, with the result that the the compounds of formula (I) designated herein as preferred are particularly suitable for the purposes of the present invention.

(21) Compounds of the formula (I) which are preferably referred to in the context of the present invention may be understood in particular to be those which correspond to the following formula (Γ): kYiZ _m O _n

n

where X = N, Na or K, with k = 0, 1 or 2, Y = C or S, with I = O or 1, and Z = H, with m = 1, 2 or 3, and n = 2, 3, 5 or 6 mean

(22) Particularly preferred compounds of the formula (I) can be selected, for example, from the group consisting of percarbamide, sodium percarbonate, KHS05 and hydrogen peroxide.

(23) In the context of the present invention, any sensory (flavor and / or odor, especially unpleasant or undesirable taste and / or odor) odor (Fehlaroma, off-note, off-odor, bad smell, malodor, taste defect, off-flavor or flavor) ) Impression that a substance of group (G1) (as described herein) has, whether as primary and / or aftertaste and / or odor. Preferred false notes to be modified, reduced or eliminated in the context of the present invention are described below.

(24) The molecular weight of one or more or all of the compound (s) of the formula (I) is preferably in the range from 500 g / mol to 30 g / mol, more preferably in the range from 300 g / mol to 30 g / mol, more preferably in the range of 160 g / mol to 30 g / mol.

(25) Within the scope of a use according to the invention, the sensorially perceived intensity of the false note is preferably reduced by 20% or more, in comparison to the untreated sample or an identical composition without compounds to be used according to the invention of the formula (I) (see also composition (ZO) as described hereinbelow).

(26) The compound (s) of formula (I) are consumed during use and preferably remain in the composition only in small amounts, the residual content preferably being 0.05% by weight and less, for example between 0 , 00001 to 0.05% by weight (see also composition (Z2) as described hereinbelow).

(27) An advantage of the present invention is that this type of miss-note modification, mitigation or elimination is applicable to a variety of false-note problems, as it is useful for a wide range of undesirable spottings from different substances causing these spurious notes (see G1)) is effective.

(28) A further advantage of this invention is that, depending on the intensity of the undesired false note, it may be possible to determine the intensity of the undesired false note. even small amounts of compounds) of the formula (I) are sufficient. According to the invention, it is preferred if the total amount of compound (s) of the formula (I) is in the range of 0.001 to 30% by weight, preferably in the range of 0.01 to 20% by weight, particularly preferably in the range of 0 , 04 to 15 wt .-%, based on the total weight of the composition (Z1).

(29) The compositions obtained by or after use according to the invention (see also composition (Z2) as described hereinbelow) can advantageously be processed further without further work-up steps such as filtration or distillation and are prepared or suitable for perfuming or aromatization , Advantageously, the approach according to the invention does not adversely affect the added, perfuming perfume or flavor. Further, the solution described herein is simple and easy to perform, involves a few steps and no additional steps of filtration or distillations; It is also energy efficient and does not require complex or expensive equipment. (30) The compounds of formula (I) themselves preferably have no appreciable odor or flavor, which does not alter the sensory profile upon later perfuming or flavoring. The (further) processing of compositions with reduced false note (s) advantageously enables the production of perfumed / flavored products with improved sensory properties and thus improved quality.

(31) A further advantage, in contrast to mere masking or masking, is that this invention advantageously involves a true reduction or even elimination of the false note (s), the effect being sensory as well as depending on the nature of the undesirable miss notes analytically measurable (see example below).

(32) It has surprisingly been found that the use of one or more compound (s) of formula (I) in perfumed or flavored products reduces the intensity of the perceived false note (s) while increasing the perceived intensity of perfuming Aroma could be found.

(33) The total amount of substance (s) of the group (G1) is preferably 0.1 wt% or less, preferably 0.01 wt% or less, more preferably 0.001 wt% or less , particularly preferably at 0.0001 wt .-% or less, based on the total weight of the composition (Z1) or the vapor space of the composition at 25 ° C and atmospheric pressure.

(34) With regard to the substance (s) causing the false note (s), it is preferable that the one or more, or all or several substances of the group (G1) are selected or are each independently selected from the group ( G1 ') consisting of linear, branched, cyclic or aromatic aldehydes, preferably those having 1 to 20 carbon atoms, linear, branched, cyclic or aromatic ketones, preferably those having 3 to 20 carbon atoms, linear or branched unsaturated Hydrocarbons, preferably those with 2 to 20 carbon atoms and linear, branched or cyclic amines, preferably those having 1 to 20 carbon atoms, and / or the group (G1 ") consisting of compounds having a molecular weight of 18 to 700 g / mol, preferably 18 to 500 g / mol , particularly preferably 18 to 300 g / mol, particularly preferably 30 to 300 g / mol,

preferably selected from the group (G1 '") consisting of formaldehyde, acetaldehyde, propanal, butanal, pentanal, hexanal, heptanal, octanal, nonanal, decanal, undecanal, dodecanal, tetradecanal, hexadecanal, octadecanal, decadienal, dodecanedienal, heptadienal, hexadienal Octadienal, undecanedienal, decenal, undecenal, heptenal, trienals and octenon, octenal, nonenal, decenal, propanone, butanone, pentanone, pentenone, octadienone, methylnonadienone, pentylfuran, hexanone, heptanone, decanone, methylheptenone, methylheptadienone, methylpropanal, methylbutanal , Phenylethanal, hydroxymethylfuranone,

Hydroxydimethylfuranone, hydroxyethylfuranone, acrolein, benzaldehyde, furfural, furylidene ketone, carene, indene, squalene, ocimes, limonene, terpinene, phellandrene, pinene, myrcene, tridecene, tetradecene, dodecene, pentadecene, undecene, decene, nonane, octadecene, heptadecene, hexadecene, Farnese, humulene, butene, pentene, methylpentene, butanediene, methylbutadiene, undecylenic, longifolene, menthadiene, methylbutene, styrene, methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, butylamine, ethanolamine, diethanolamine, triethanolamine and furfurylamine.

(35) An undesirable miscarriage is often described in terms such as roasted, nutty, spicy, bitter, pungent, biting, scratchy, medicinal, fishy, amine, hay, chemical, technical, burnt, greasy, sour, herbaceous, musty, foul , fermented, terpenic, aromatic, fruity, woody, fleshy, ethereal, earthy, green, solvent, gummy, charred, fecal, urine-like, earthy, mushy, smoky, decaying, rancid, petrolatum, buttery, vegetable, cooked, animalistic, sweaty , cheesy, carbonaceous, pungent, cooling, creamy, floral, oily, mossy, metallic, workshop-like, floating-like, pyridine-like, pyrazine-like, silage-like, carrot-like, adhesive-like, disinfectant-like, dusty, spicy, aromatic, powdery, poppy, floury, dry. Such false notes are within the scope of the present invention. It is particularly preferred to modify, reduce or eliminate false notes.

(36) The weight ratio of the total amount of compound (s) of formula (I) to the total amount of substance (s) of group (G1) in the composition (Z1) is preferably in the range of 300: 1 to 1: 3, preferably Range of 100: 1 to 1: 3, more preferably in the range of 10: 1 to 1: 2, particularly preferably in the range of 3: 1 to 1: 1.

(37) Substances of group (G2) are preferably - at least in part - common unperfumed or unflavoured basic substances / ingredients such as those used in the manufacture of perfumed or flavored personal care, oral care, household, fine fragrance products, compositions and preparations , Food, pet food, flavor, pharmacy find use.

(38) According to the invention it is preferred if the one or more, or all or several substances (e) of the group (G2) contained in the composition (Z1) are selected or are selected from the group (G2 ') consisting of compounds having a molecular weight in the range of 18 to 2000 g / mol, preferably 18 to 1500 g / mol, particularly preferably 30 to 1000 g / mol.

(39) The composition (Z1) preferably contains one or more substances selected from the group consisting of water, methanol, ethanol, propanol, isopropanol, butanol, pentanol, isoamyl alcohol, Hexanol, heptanol, octanol, decanol, dodecanol, hexane-decanol, octadecanol, propanediol, butanediol, pentanediol, hexanediol, heptanediol, octanediol, decanediol, dodecanediol, glycerol, sorbitol, propylene glycol, dipropylene glycol, triethyl citrate, methyl cellulose, panthenol, isoamyl alcohol , Methylbutanol, glucose, starch, formic, acetic, propionic, butyric, valeric, isovaleric, caproic, caprylic, pelargonic, capric, myristic, stearic, lauric, palmitic, lactic, citric, oxalic, Na / K-formate, Na / K-acetate, Na / K-propionate, Na / K-butyrate, Na / K-capronate, Na / K-caprylate, Na / K-decanoate, Na / K-myristate, Na / K-laurate, Na / K / Mg / Al / Zn stearate, Na / K Palmitate, phytanic acid, isopropyl myristate, diethyl phthalate, methylparaben, ethylparaben, propylparaben, laurylsulfate, sorbitan tristearate, sorbitan monolaurate, sorbitan monooleate, sorbitan trioleate,

Sorbitan monopalmitate, lauryl ether sulfate, myristyl ether sulfate, paraffin, vasiline, propane, butane, isobutane, pentane, methybutane, hexane, heptane, octane, nonane, decane, docane, tridecane, undecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, menthan, cyclohexane, Phytan, squalane, steran, guanane, cedran, disodium dihydrogen diphosphate, tetrasodium diphosphate, dimethicone, cetylpyridinium chloride, polyquaternium, benzalkonium chloride, cetyltrimethylammonium bromide, benzalkonium chloride and hydrolyzed keratin, the one or more, or all of those contained in the composition (Z1) (n) substance (s) of the group (G2) or (G2 ') is selected from the above group (G2 ") or wherein the composition in addition to the (s) contained substance (s) of the group (G2) or (G2 ') contains one or more substance (s) of the above group (G3).

(40) Group (G1) causative agents for undesirable blemishes often occur only in the trace range and are present in the compositions themselves in a concentration of or in the vapor space above, according to a preferred embodiment of the present invention at a concentration of 0.001 ng / μΙ. to 1 g / L available or measurable at 25 ° C and atmospheric pressure.

(41) The determination of the concentration (s) of group (G1) may be carried out, for example, by gas chromatographic analysis (GC) or by liquid chromatographic analysis (LC) after an extraction or work-up step. This concentration determination represents a routine analysis and is known to those skilled in the art.

(42) The determination of the concentration (s) of group (G1) in the vapor phase over the compositions is preferably carried out by means of dynamic vapor space sampling whereby a specific volume of the vapor space is drawn off with group (G1) substance (s) and the substance (s) is / are attached to a carrier matrix. This Charge carrier matrix can in a GC by the action of heat (thermally) the deposited material (s) again (desorption) and the concentration of the deposited substances (s), and thus determines the concentration in the volume of the vapor space become. Corresponding analysis examples are described in detail in the Gerstel applications AppNote-201 1 -01 and AppNote-2012-06. Another common method is the use of a solvent which replaces the deposited substance (s) and then the concentration of the false notes in the solution thus obtained, analogous to the previous approach, can be determined.

(43) A method for the qualitative determination of the false note (s) represents the common technique of GC-Olfactometry, which allows a sensory evaluation of components separated by GC and thus the identification of the odor- and flavor-relevant compounds. This is a well-established method, for which there is a great deal of technical literature (for example, Delahuntry CM et al., 2006: Gas Chromatography-olfactometry, J. Sep., p.29 (14), 2107-25).

(44) The sensory examinations carried out in the context of the present invention were carried out by means of a sensory-trained group of 15 persons, the samples being randomized and coded, and the perceived intensity as well as the perceived sensory impression itself being described. This group rated the intensity of the perceived impressions on a scale from 0 to 9, where 0 stands for no perceived intensity and 9 for a highly intense intensity impression. Furthermore, the group described the sensory impressions with different attributes.

(45) The compositions obtained in the context of the present invention or as part of a use according to the invention or a method according to the invention (as described herein) (see in particular composition (Z2) as described hereinbelow) can be used to prepare certain preparations (Z3 ), in particular flavored and / or perfumed preparations (Z3), with further Ingredients, additives and excipients. Preferred preparations are those from the fields of cosmetics, personal care, oral care, oral care, household, air fresheners, fine fragrance, perfumes, food, nutritional supplements, flavors, pet food and pharmaceuticals.

(46) The above mentioned (further) ingredients, adjuvants or other additives are, for example, surfactants, oils, emulsifiers, waxes, sugars, carbohydrates, proteins, proteins, amino acids, sweeteners, flavor modulators, odor maskers, thickeners, stabilizers, polymers, fats, lecithin, phospholipids, UV filters , Antioxidants, humectants, antiperspirants, antiperspirants, antidandruff agents, swelling agents, film formers, buffers, insect repellents, self-tanning agents, depigmenting agents, solvents, preservatives, flavorings, perfumes, dyes, plastics, elastomers, stabilizers, vitamins, fillers, copolymers, polysaccharides, protein hydrolysates, electrolytes , Minerals, herbal extracts, aqueous extracts, concentrates, essential oils and antibacterial, fungicidal and / or sporicidal substances.

(47) Such preparations (Z3) in a preferred embodiment, in addition to a composition (Z2) described herein (as described hereinafter), regularly contain one or more flavorings or perfumes.

(48) Flavorings or perfumes in the sense of this invention are defined by, for example, "fragrances" in Steffen Arctander, in "Perfume and Flavor Chemicals", Eigenverlag, Montclair, NJ 1969; H. Surburg, J. Panten, in Common Fragrance and Flavor Materials, 5th Edition, Wiley-VCH, Weinheim 2006 or European or American case law, such as Regulation (EC) No 2232/96 of the European Parliament and of the Council and the positive list as defined in Commission Implementing Regulation (EU) No 872/2012 Typical examples of flavorings or perfumes are, for example, acetophenone, allyl capronate, alpha-lonone, beta-ionone, anisaldehyde, anisyl acetate, anisylformate, benzaldehyde, Benzothiazole, benzyl acetate, benzyl alcohol, benzyl benzoate, beta-ionone, Butyl butyrate, butyl capronate, butyl di-phthalide, carvone, camphene, caryophyllene, cineole, cinnamyl acetate, citral, citronellol, citronellal, citronellyl acetate, cyclohexyl acetate, cymene, damascone, decalactone, dihydrocoumarin, dimethyl anthranilate, dimethyl anthranilate, dodecalactone, ethoxyethyl acetate, ethyl butyric acid, ethyl butyrate, ethyl caprinate, Ethyl capronate, ethyl crotonate, ethylfuranole, ethyl guaiacol, ethyl isobutyrate, ethyl isovalerate, ethyl lactate, ethyl methyl butyrate, ethyl propionate, eucalyptol, eugenol, ethyl heptylate, 4- (p-hydroxyphenyl) -2-butanone, gamma decalactone, geraniol, geranyl acetate, geranyl acetate, grapefruital, methyl dihydrojasmonate ( eg Hedion®), heliotropin, 2-heptanone, 3-heptanone, 4-heptanone, trans-2-heptenal, cis-4-heptenal, trans-2-hexenal, cis-3-hexenol, trans-2-hexenoic acid, trans 3-hexenoic acid, cis-2-hexenylacetate, cis-3-hexenylacetate, cis-3-hexenylcapronate, trans-2-hexenylcapronate, cis-3-hexenylformate, cis-2-hexylacetate, cis-3-hexylacetate, trans-2 -Hexylacetat, cis-3-hexyl formate, para-hydroxybenzylacetone, isoamyl alcohol,

Isoamylisovalerate, isobutyl butyrate, isobutyraldehyde,

Isoeugenol methyl ether, isopropylmethylthiazole, lauric acid, leavulinic acid, linalool, linalooloxide, linalylacetate, menthol, menthofuran, methylanthranilate, methylbutanol, methylbutyric acid, 2-methylbutylacetate, methylcapronate, methylcinnamate, 5-methylfurfural, 3,2,2-methylcyclopentenolone, 6,5,2- Methylheptenone, methyldihydrocnasmonate, methyl jasmonate, 2-methylmethylbutyrate, 2-methyl-2-pentenoic acid, methyl thiobutyrate, 3,1-methylthiohexanol, 3-methylthiohexyl acetate, nerol, neryl acetate, trans, trans

2.4 nonadienal, 2,4-nonadienol, 2,6-nonadienol, 2,4-nonadienol, nootkatone, delta octalactone, gamma octalactone, 2-octanol, 3-octanol, 1, 3-octenol, 1-octyl acetate, 3 Octyl acetate, palmitic acid, paraldehyde, phellandrene, pentanedione, phenylethyl acetate, phenylethyl alcohol, phenylethyl alcohol, phenylethyl isovalerate, piperonal, propionaldehyde, propyl butyrate, pulegone, pulegol, sinensal, sulphurol, terpinene, terpineol, terpinolene, 8,3-thiomenthanone, 4,4,2- Thiomethylpentanone, thymol, delta undecalactone, gamma undecalactone, valencene, valeric acid, vanillin, acetoin, ethyl vanillin, ethyl vanillin isobutyrate (= 3-ethoxy-4-isobutyryloxybenzaldehyde),

2,5-dimethyl-4-hydroxy-3 (2H) -furanone and its derivatives (preferably homofuraneol (= 2-ethyl-4-hydroxy-5-methyl-3 (2H) -furanone), Homofuronol (= 2-ethyl-5-methyl-4-hydroxy-3 (2H) -furanone and 5-ethyl-2-methyl-4-hydroxy-3 (2H) -furanone), maltol and maltol derivatives (preferably Ethylmaltol), coumarin and coumarin derivatives, gamma-lactones (preferably gamma-undecalactone, gamma-nonalactone, gamma-decalactone), delta-lactones (preferably 4-methyldeltadecalactone, massoilactone, deltadecalactone, tuberolactone), methylsorbate, divanillin, 4 -Hydroxy-2 (or 5) -ethyl-5 (or 2) -methyl-3 (2H) furanone, 2-hydroxy-3-methyl-2-cyclopentenone, 3-hydroxy-4,5-dimethyl-2 (5H ) -furanone, isoacyl acetate, ethyl butyrate, n-butyl butyrate, isoamyl butyric acid, ethyl 3-methylbutyrate, ethyl n-hexanoate, allyl n-hexanoate, n-butyl n-hexanoate, n-octanoic acid, ethyl-3-methyl-3 phenyl glycidate, ethyl 2-trans-4-cis decadienoate, 4- (p-hydroxyphenyl) -2-butanone, 1,1-dimethoxy-2,2,5-trimethyl-4-hexane, 2,6-dimethyl 5-hepten-1-al and phenylacetaldehyde, 2-methyl -3- (methylthio) furan, 2-methyl-3-furanethiol, bis (2-methyl-3-furyl) disulphide, furfurylmercaptan, methional, 2-acetyl-2-thiazoline, 3-mercapto-2-pentanone, 2, 5-dimethyl-3-furanethiol, 2,4,5-trimethylthiazole, 2-acetylthiazole, 2,4-dimethyl-5-ethylthiazole, 2-acetyl-1-pyrroline, 2-methyl-3-ethylpyrazine, 2-ethyl 3,5-dimethylpyrazine, 2-ethyl-3,6-dimethylpyrazine, 2,3-diethyl-5-methylpyrazine, 3-isopropyl-2-methoxypyrazine, 3-isobutyl-2-methoxypyrazine, 2-acetylpyrazine,

2-pentylpyridine, (E, E) -2,4-decadienal, (E, E) -2,4-nonadienal, (E) -2-octenal, (E) -2-nonenal, 2-undecenal, 12- Methyltridecanal, 1-pentene-3-one, 4-hydroxy-2,5-dimethyl-3 (2H) -furanone, guaiacol, 3-hydroxy-4,5-dimethyl-2 (5H) -furanone,

3-hydroxy-4-methyl-5-ethyl-2 (5H) -furanone, cinnamaldehyde, cinnamyl alcohol, methyl salicylate, isopulegol and (not explicitly mentioned here) stereoisomers, enantiomers, position isomers, diastereomers, cis / trans -lsomere or epimers of these substances.

(49) Furthermore, one or more flavor modulators may be included. Flavor modulators in the context of the invention are flavorings which can influence the taste directly, and are for example selected from the group consisting of monosodium glutamate, free glutamic acid, nucleotides or their pharmaceutically acceptable salts, strombines, theogallines as described in JP 2007 1 10988 A, pyridine Betaine compounds as described in EP 1291342 B1, glutamic acid glycosides as described in WO 2002 087361 A1, apple acid glycosides as described in WO 2006 003107 A1, glutathione derivatives as described in EP 0181421 or WO 2007 042273 A1), alkylpyridines (preferably cylpyridines as described in WO 2009 122318 A1 and WO 2009 1223319 A1), in particular 2-hexyl, 2-heptyl and 2-octylpyridine, (2E, 6Z) -N-cyclopropylnona-2,6-dienamide, (2E, 6Z) -N-ethylnona-2,6-dienamide, N - [(2E) -3,7-dimethylocta-2,6-dienyl] cyclopropanecarboxamide, N '- [(2-methoxy-4-methylphenyl ) methyl] - N - [2- (5-methyl-2-pyridyl) ethyl] oxamide, N '- [(2,4-dimethoxyphenyl) methyl] - N - [2- (2-pyridyl) ethyl ] -Oxamide, N '- [(2-methoxy-4-methylphenyl) methyl] -N- [2- (2-pyridyl) ethyl] oxamide, N- (1-propylbutyl) -1,3-benzodioxole 5-Carboxamide, 1- (2-hydroxy-4-isobutoxyphenyl) -3- (2-pyridyl) propan-1-one and 1- (2-hydroxy-4-methoxyphenyl) -3- ( 2-pyridyl) propan-1-one, cinnamic acid amides as described in EP 2,529,632-B1 or WO 2013 000,673 Lactisols, hesperitin according to EP 1909599 A1, phloretin according to EP 1972203 B1 or EP 1998636 B1, hydroxyflavans according to US 2010 292175 AA, 4-hydroxychalcones according to EP 1972203 B1, extracts based on hydrangea dulcis according to EP 2298084 A2, or Rubus ssp . Mixtures of whey proteins with lecithins, yeast extracts, plant hydrolysates, pulverized vegetables (eg onion powder, tomato powder), plant extracts (eg of lovage or of fungi such as shiitake), seaweeds and mineral salt mixtures, in particular mineral salt mixtures according to US 2009 214728 AA, rubemamine or Rubescene amine according to EP 2,529,632 B1.

(50) According to the invention there is further provided a method for modifying, reducing or eliminating one or more false grade (s), comprising the following steps:

(i) providing a composition (Z0) containing

one or more substance (s) with false note (s), preferably as defined above, wherein the one or more or all substances are or are selected from the group (G1), (G1 '), (G1) ) or (G1 "') as defined above, one or more substance (s) selected from the group (G2), (G2 ') or (G2 ") as defined above,

(ii) providing one or more compound (s) of the formula (I) as defined above,

(iii) adding the compound (s) of formula (I)

Step (ii) to the composition (ZO) of step (i) to obtain a composition (Z1) as defined above

(iiii) thermally treating the composition (Z1) obtained after the addition of the compound (s) of the formula (I) for 0.1 hours to 168 days, preferably for 0.5 to 96 hours, more preferably for 0.5 to 48 Hours, at a temperature of 15 to 120 ° C, preferably from 22 to 80 ° C, more preferably from 30 to 50 ° C, and chemically converting the material (s) of the group (G1), (G1 ') , (G1 ") or (G1 '") and thereby modifying, reducing or eliminating the unwanted false note (s) by means of the compounds) of the formula (I), so that a composition (Z2) is obtained in which, compared to the Compositions (Z0) and (Z1) the unwanted false note (s) is modified, reduced or eliminated. A composition (Z0) described herein, according to a preferred embodiment of the present invention, has no or at most a small total amount of fragrances and / or flavorings, preferably a total amount of fragrances and / or flavorings of less than 1.1 parts by weight. %, more preferably less than 0.1 wt .-%, based on the total weight of the composition (Z0), wherein the substances of the group (G1) with its or their Fehlnote (s) not the fragrance and / or flavorings attributable to. (52) For preferred embodiments, for example with regard to the substances or compounds and their amounts or concentrations which are preferably contained or to be used, the statements made above in connection with a use according to the invention apply accordingly.

(53) Furthermore, the previously described method may comprise a further step (iiiii):

Addition of hydroxide ions to the composition (Z2) obtained after addition of the compounds) of the formula (I) and after the thermal treatment

and thermally treating the resulting composition for 0.1 to 48 hours, preferably for 0.5 to 36 hours, in particular for 0.5 to 24 hours, at a temperature of 15 to 120 ° C, preferably from 22 to 80 ° C. , particularly preferably from 30 to 50 ° C,

and optionally setting or neutralizing the pH.

(54) The procedure may be favored or supported by the following additional (optional) steps:

Irradiating the composition (Z1) obtained after adding the compound (s) of the formula (I) in step (iii) or irradiating the composition (Z1) during the thermal treatment in step (iiii), or irradiating the composition (Z2), or Irradiating the composition (Z2) present before, during or after step (iiiii) described above, with UV light for 0.5 to 96 hours, preferably for 0.5 to 48 hours, more preferably for 0.5 up to 24 hours.

Addition of iron and / or copper ions to the composition (Z2) obtained after the addition of the compound (s) of the formula (I) and after the thermal treatment, preferably in a weight ratio of the total amount of compound (s) of the formula (I ) to the total amount of iron and / or copper ions in the range from 20: 1 to 1: 5, especially preferably in the range from 10: 1 to 1: 2, particularly preferably in the range from 5: 1 to 1: 1.

(55) The present invention also relates to a composition (Z2) preparable or prepared by a process as described above, wherein the composition (Z2) has a total amount of compound (s) of the formula (I) in the range of 0.05 wt. % and smaller, preferably 0.00001 to 0.05% by weight. Again, for preferred embodiments, e.g. with regard to the substances or compounds preferably contained or to be used, in this case corresponding to what has been said above in connection with a use according to the invention. Other preferred characteristics of such a composition will also be apparent from the foregoing. Such a composition (Z2) is particularly preferably used or contained in preparations (Z3) or products described above.

(56) In the following, the present invention will be explained in more detail with reference to selected examples. Unless stated otherwise, all quantities are based on weight (% by weight).

Example 1 - Body Gel

When using a body gel on the skin or when creaming in addition to the perfuming after some time, an undesirable false note perceived, which was described as "technical, fishy, musty" The examination of the formulation using different methods showed that the used Polyquat (quaternary ammonium compounds), which releases trimethylamine, was the cause of this undesirable false note.

Preparation of Body Gel:

Hibiscus pylenglykol, glucose,

Hibiscus extract

Timiron Sun Mica, titanium dioxide, 0, 10 0, 10 0, 10 0 0 gold Sparkle iron oxide

MP-29

F Neo-PCL water Trideceth-9, PEG-5, 3.00 3.00 3.00 0 0

Soluble N ethylhexanoate,

water

Perfume Perfume 1, 00 1, 00 0,95 0 0

Propylene glycol Propylene glycol 0 0 0.05 0 0

Solubilizer PEG-40 Hydrogen 1, 00 1, 00 1, 00 0 0 ated castor oil,

Tridedeth-9, propylene glycol, water

Phase A and Phase B were mixed and homogeneously dissolved with stirring at 40 ° C for 2 hours. After the addition of phase C, the mixture was stirred again for 1 hour at 40.degree. Thereafter, phase D was added with stirring and the temperature lowered to room temperature. After mixing Phase E, it was added with stirring. Then phase F was mixed and added to the batch with stirring.

Application Test:

150 mg of each mixture was distributed evenly over a forearm surface of 7 x 3 cm using a spatula. After about 30 seconds, the false note was perceptible and was examined organically and analytically. For this purpose, the perfumed mixtures A, B and C were compared against each other, as well as the unperfumed mixtures D and E. Sensory examination:

The sensory examinations were carried out by means of a sensory-trained group of 15 persons, whereby the samples were randomized and coded, whereby both the perceived intensity and the perceived, sensory impression itself were described. This group evaluated the intensity of perceived impressions (total intensity) as well as the perceived intensity of the false score on a scale of 0 to 9, where 0 represents no perceived intensity and 9 a most intense intensity impression. Furthermore, the group described the sensory impressions with different attributes. a) Results of the perfume-containing mixtures A, B and C:

The intensity of the false grade of mixture A was rated as perceptible (4) to clearly perceptible (5), while blends B and C were rated as barely perceptible (1) to slightly perceptible (2) were. Thus, blends B and C showed a marked reduction in blotch intensity over Blend A. b) Results of unscented blends D and E:

Since they were unperfumed mixtures, only the false note was perceptible and the total intensity was identical to the false note intensity. The intensity of the false note of the mixture D was clearly perceived (5), while the mixture E was evaluated with barely perceptible (1) to slightly noticeable (2). Thus, the mixture E showed a significant reduction of the false note intensity by 71% compared to mixture D.

Analytical investigation:

The trimethylamine, the cause of the unwanted false note, was analyzable only in the trace range at the detection limit of GC-MS in the unperfumed mixtures D and E. The perfume-containing mixtures A, B and C have been co-eluted with trimethylamine with other ingredients. The determination of trimethylamine was carried out in the vapor phase over the mixture applied to the forearm, analogous to the sensory evaluation. This vapor space with the trimethylamine was continuously sucked off and the trimethylamine was deposited on the carrier matrix Tenax. The vapor space sampling took place at room temperature and a flow of 100 ml / min for 15 minutes. This loaded with the trimethylamine carrier matrix was measured by GC / MS and the MS areas (counts) determined. From the determined areas of mixtures D and E, a factor was determined by dividing the proportions.

The area and thus the released amount of trimethylamine has decreased by a factor of 10.5.

Example 2 - Ethanol:

Ethanol is used, among other things, for the production of flavoring compounds for products from the food, cosmetics (Personal Care), household (Home Care), fine fragrance, oral care (oral care), pharmaceuticals and pet food industries. Depending on the production and quality of the ethanol, this can have undesirable spurious notes that interfere with the product and reduce its quality. The unwanted false note was described as "greasy, rancid, fermented, cheesy, spicy." The investigations revealed that this undesirable miscarriage was mainly caused by acrolein, butanal, hexanal, butanedione, acetoin and pentandione.

Sample preparation:

To prepare the samples, the phase C was added to the phase A in a glass vessel and stirred closed at room temperature for 24 hours. Thereafter, the phase D was added and stirred for 4 hours at room temperature, stirred. While stirring, the addition of phase E followed by the addition of phase F. Sensory evaluation:

The samples were tempered to room temperature in a closed glass lidded vessel using the same vessels and sample volume. For each measurement, a maximum of 6 to 10 samples were evaluated, and tap water blanks and some duplicate identical samples were measured. The sensory evaluation was carried out by means of a sensory-trained group of 15 persons as well as randomized and coded samples, whereby both the perceived intensity and the perceived sensory impression itself were described. This group evaluated the intensity of perceived impressions (total intensity) as well as the perceived intensity of the false score on a scale of 0 to 9, where 0 represents no perceived intensity and 9 a most intense intensity impression. Furthermore, the group described sensory-perceived impressions with different attributes.

Total intensity Description Result intensity Missing grade

Blind 0, 1 0 neutral, odorless Comparison of the jitter intensity of the

I 4,8 4,5 greasy, fermented, cheesy,

Initial sample I with vegetables, rancid, alcoholic,

the treated sample spicy

III

II 1, 5 0,4 alcoholic, neutral, technical, medical

Reduction by 90%

III 1, 8 0,5 alcoholic, greasy, spicy Comparison of Fehlno

IV 6.0 4.4 greasy, vegetables, spicy, ten-intensity of orange, citrus, fruity, sample IV with floral of the treated sample

VI

V 6,3 0 citrus, orange, fresh, fruity, floral

VI 6, 1 0,4 Citrus, orange, fruity, reduction around

flowery, spicy, 91%

The treated sample III showed a 90% reduction in miss-grade intensity and tended to be comparable to sample II (ethanol p.A.). For the flavor-containing samples the same tendencies were found. In the treated, aroma-containing sample VI, the intensity of the false note was rated barely perceptible and was significantly reduced by 91%.

Analytical investigation:

The undesirable miscarriage was mainly caused by acrolein, butanal, hexanal, butanedione, acetoin and pentanedione and was analyzable only in trace amounts by GC-MS in the un-aromatized samples I and III. In the aroma-containing samples IV and VI, the substances causing the false-note were obscured by the added flavorings and thus could not be analyzed. The determination of the individual missile components was carried out analogously to the sensory evaluation in the vapor phase over the sample in the screw-cap glass at room temperature. This headspace with the miss component was continuously aspirated, with the missile components then attaching to the carrier matrix Tenax. The vapor space sampling took place at room temperature and a flow of 100 ml / min for 30 minutes. The carrier matrix loaded with the defect components was measured by means of GC / MS and the MS areas (counts) of the individual joints causing the false note were determined. For the determination of the total error grade, the areas and thus the quantities of the individual missnot components were determined summarized to a total area. These total areas of samples I and III were proportioned and a factor determined.

The total area of the defect components and thus the amount in the vapor chamber has been reduced by a factor of 9.8.

Claims

claims:

1 . Use of one or more compounds of the formula (I) kYiZ _m O _n

(IX where X = N, Na, K, Mg or Ca, with k = 0, 1 or 2, Y = C or S, with I = 0, 1, 2 or 3, and Z = H, with m = 0 , 1, 2, 3, 4, 5, 6, 7 or 8, and n = 2, 3, 4, 5, 6, 7 or 8, preferably with Z = H, with m = 0, 1, 2, 3, 4, 5 or 6, and n = 2, 3, 4, 5 or 6, for modifying, reducing or eliminating one or more false notes of one or more substances selected from the group consisting of (G1) Aldehydes, ketones, unsaturated hydrocarbons and amines, by chemical transformation of the substance (s) of the group (G1) and thereby modifying, reducing or eliminating the false note (s), in a composition (Z1) in addition to one or more Compounds of the formula (I) and the substance (s) of the group (G1) moreover one or more substances selected from the group (G2) consisting of alcohols, carboxylic acids, esters, carboxylates, mineral salts, saturated hydrocarbons, silicones, Quaternary ammonium compounds, sulfates and sw Rock acid esters, contains.

2. Use according to claim 1, wherein the total amount of compound (s) of formula (I) in the range of 0.001 to 30 wt .-%, preferably in the range of 0.01 to 20 wt .-%, particularly preferably in the range from 0.04 to 15% by weight, based on the total weight of the composition (Z1).

3. Use according to claim 1 or 2, wherein the total amount of substance (s) of the group (G1) at 0, 1 wt .-% or less, preferably at 0.01 wt .-% or less, more preferably at 0.001 wt % or less, particularly preferably 0.0001% by weight or less, based on the Total weight of the composition (Z1) or the vapor space of the composition (Z1) at 25 ° C and normal pressure.

4. Use according to one of the preceding claims, wherein the weight ratio of the total amount of compound (s) of the formula (I) to the total amount of substance (s) of the group (G1) in the composition (Z1) in the range of 300: 1 to 1: 3, preferably in the range from 100: 1 to 1: 3, particularly preferably in the range from 10: 1 to 1: 2, particularly preferably in the range from 3: 1 to 1: 1.

5. Use according to one of the preceding claims, wherein the molecular weight of the or one, several or all compound (s) of the formula (I) in the range of 500 g / mol to 30 g / mol, preferably in the range of 300 g / mol to 30 g / mol, more preferably in the range of 160 g / mol to 30 g / mol.

6. Use according to one of the preceding claims, wherein the false note (s) is selected from the group consisting of roasted, nutty, spicy, bitter, pungent, biting, scratchy, medicinal, fishy, amine, hay, chemical , technical, burnt, greasy, sour, herbaceous, musty, putrid, fermented, terpene, aromatic, fruity, woody, fleshy, essential, earthy, green, solvent, gummy, char, faecal, urine, earthy, fungal, smoky, decaying , rancid, petrolike, buttery, vegetable, cooked, animal, sweaty, cheesy, carbonaceous, pungent, cooling, creamy, floral, ointment, mossy, metallic, workshop, floating, pyridine, pyrazine, silage, carrot, adhesive, disinfectant , dusty, spicy, powdery, astringent, poppy, dusty, and dry floury miss notes.

7. Use according to one of the preceding claims, wherein the one or more, or all substances of the group (G1) is selected or are each independently selected from the group (G1 ') consisting of linear, branched, cyclic or aromatic aldehyde , preferably those having 1 to 20 carbon atoms, linear, branched, cyclic or aromatic ketones, preferably those having 3 to 20 carbon atoms, linear or branched unsaturated hydrocarbons, preferably those having 2 to 20 carbon atoms and linear, branched or cyclic amines, preferably those having 1 to 20 carbon atoms, and / or the group (G1 ") consisting of compounds having a molecular weight of 18 to 700 g / mol, preferably 18 to 500 g / mol, particularly preferably 18 to 300 g / mol, particularly preferably 30 to 300 g / mol,

Hydroxydimethylfuranone, hydroxyethylfuranone, acrolein, benzaldehyde, furfural, furylidene ketone, carene, indene, squalene, ocimes, limonene, terpinene, phellandrene, pinene, myrcene, tridecene, tetradecene, dodecene, pentadecene, undecene, decene, nonane, octadecene, heptadecene, hexadecene, Farneses, humulene, butene, pentene, methylpentene, butanediene, methylbutadiene, undecylenic, longifolene, menthadiene, methylbutene, styrene, methylamine, dimethylamine, trimethylamine, ethylamine, diethylamine, triethylamine, butylamine, ethanolamine, diethanolamine, triethanolamine and furfurylamine ,

Use according to any one of the preceding claims, wherein the one or more or all of the substance (s) of the group (G2) contained in the composition (Z1) is / are selected from the group (G2 ') consisting of Compounds having a molecular weight in the range of 18 to 2000 g / mol.

Use according to any one of the preceding claims, wherein the composition (Z1) further comprises one or more substances selected from the group consisting of water, methanol, ethanol, propanol, isopropanol, butanol , Pentanol, isoamyl alcohol, hexanol, heptanol, octanol, decanol, dodecanol, hexanedecanol, octadecanol, propanediol, butanediol, pentanediol, hexanediol, heptanediol, octanediol, decanediol, dodecanediol, glycerol, sorbitol, propylene glycol, dipropylene glycol, triethyl citrate, methylcellulose, panthenol , Isoamyl alcohol, methyl butanol, glucose, starch, formic acid, acetic acid, propionic acid, butyric acid, valeric acid, isovaleric acid, caproic acid, caprylic acid, pelargonic acid, capric acid, myristic acid, stearic acid, lauric acid, palmitic acid, lactic acid, citric acid, oxalic acid, Na / K formate, Na / K-acetate, Na / K-propionate, Na / K-butyrate, Na / K-capronate, Na / K-caprylate, Na / K-decanoate, Na / K-myristate, Na / K-laurate, Na / K / Mg / Al / Zn stearate, Na / K palmitate, Phytanic acid, isopropyl myristate, diethyl phthalate, methylparaben, ethylparaben, propylparaben, laurylsulfate, sorbitan tristearate, sorbitan monolaurate, sorbitan monooleate, sorbitan trioleate, sorbitan monopalmitate, lauryl ether sulfate, myristyl ether sulfate, paraffin, vasiline, propane, butane, isobutane, pentane, methybutane, hexane, heptane, octane, nonane, Decane, docane, tridecane, undecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, menthan, cyclohexane, phytan, squalane, steran, guanane, cedran, disodium dihydrogen diphosphate, tetrasodium diphosphate, dimethicone, cetylpyridinium chloride, polyquaternium, benzalkonium chloride, cetyltrimethylammonium bromide, benzalkonium chloride and hydrolyzed keratin , wherein one or more or all of the substance (s) of the group (G2) or (G2 ') contained in the composition (Z1) is / are selected from the above group (G2 ") or wherein the composition in addition to the (s) contained substance (s) of the group (G2) or (G2 ') contains one or more substance (s) of the above group (G3).

10. A method for modifying, reducing or eliminating one or more false grade (s), comprising the steps of:

(i) providing a composition (Z0) containing one or more substance (s) with false note (s), preferably as defined in claim 6, wherein the or one or more, or all substances are selected from the group (G1), (GV), (GV ) or (G1 '") as defined in any one of claims 1 or 7,

one or more substance (s) selected from the group (G2), (G2 ') or (G2 ") as defined in one of claims 1, 8 or 9,

Providing one or more compound (s) of formula (I) as defined in claim 1,

Adding the compound (s) of formula (I) from step (ii) to the composition (ZO) from step (i) to obtain a composition (Z1) as defined in claim 1, thermally treating the after addition of the compound (s) of the formula (I) obtained for 0.1 hours to 168 days, preferably for 0.5 to 96 hours, particularly preferably for 0.5 to 48 hours, with a temperature of 15 to 120 ° C, preferably from 22 to 80 ° C, more preferably from 30 to 50 ° C, and chemically converting the material (s) of the group (G1), (G1 '), (G1 ") or (G1 '") and thereby modifying, reducing or eliminating the undesired false note (s) by means of the compounds) of the formula (I), so that a composition (Z2) is obtained in which, compared to the compositions (Z0) and (Z1) the unwanted miss note (s) is modified, diminished or eliminated.

1 1. The method of claim 10, further comprising the step of:

(iiiii) addition of hydroxide ions to the composition (Z2) obtained after adding the compounds) of the formula (I) and after the thermal treatment

and optionally setting or neutralizing the pH.

12. The method of claim 10 or 1 1, further comprising the following step:

Irradiating the composition (Z1) obtained after adding the compound (s) of the formula (I) in step (iii) or irradiating the composition (Z1) during the thermal treatment in step (iiii), or irradiating the composition (Z2), or Irradiating the composition (Z2) present or obtained before, during or after the step (iiiii) described in claim 11, with UV light for 0.5 to 96 hours, preferably for 0.5 to 48 hours, more preferably for 0.5 to 24 hours.

13. The method of claim 10, 1 1 or 12, further comprising the following step:

Adding iron and / or copper ions to the composition (Z2) obtained after adding the compound (s) of the formula (I) and after the thermal treatment.

Composition (Z2), preparable or prepared by a process according to any one of claims 10 to 13, wherein the composition (Z2) comprises a total amount of compound (s) of formula (I) in the range of 0.05% by weight and smaller, preferably 0.00001 to 0.05 wt%, contains.