摘要:
The subject of the present invention is a flavored therapeutic composition containing a clay as the active principle, and characterized in that the clay is a dioctahedral smectite and the flavor is encapsulated.
摘要:
The present invention relates to a perfuming ingredient of a compound of formula in the form of any one of its isomers or of a mixture thereof, and having a boiling point above 250° C., as measured at a pressure of 1013 mbar and its use in a method to confer, enhance, improve or modify the odor properties of a perfuming composition or perfumed article. The perfuming compositions and perfumed articles having the desirable odor characters are also part of this invention.
摘要:
3-Methyl-2-oxo-ethylpentanoate or an isomer thereof are very useful compounds in the field of perfumery, having an unusual, fruity odor note that can be described as a fresh walnut odor together with a rum type note.
摘要:
A process which comprises reacting an aliphatic or cycloaliphatic olefin, having 4 to 16 carbon atoms in its main chain and a non-terminal double bond, with a carboxylic acid, in the presence of hydrogen peroxide and a catalyst consisting of a palladium salt or complex.
摘要:
The aldehydes, N-hexanal, 3-(Z)-hexen-1-al and 2-(E)-hexen-1-al, and their corresponding alcohols are enzymatically produced in high yield from linoleic, linolenic acid or a natural precursor thereof such as hydrolyzed oil. The acid or natural precursor is mixed with soy flour containing lipoxygenase which converts the acid to 13-hydroperoxy-octadeca-9,11-dienoic acid or 13-hydroperoxy-octadeca-9,11,15-trienoic acid. Guava homogenate containing lyase is added to convert the 13-hydroperoxy-octadeca-9,11-dienoic acid into n-hexanal or the 13-hydroperoxy-octadeca-9,11,15-trienoic acid into 3-(Z)-hexen-1-al. The n-hexanal or 3-(Z)-hexen-1-al is recovered, or reduced with yeast to n-hexanol or 3-(Z)-hexen-1-ol, respectively. Alternatively, the 3-(Z)-hexen-1-al is isomerized to obtain 2-(E)-hexen-1-al which is recovered or reduced with yeast to 2-(E)-hexen-1-ol which is recovered. The yeast used for reducing and isomerizing is Saccharomyces cerevisiae. Steam distillation and/or extraction with an inert organic solvent is used in recovery of the aldehydes and alcohols.
摘要:
1,1,2,3,4,4,6-Heptamethyl-1,2,3,4-tetrahydronaphthalene, a novel naphthalenic compound, is useful as an intermediate for the preparation of 5,6,7,8-tetrahydro-3,5,5,6,7,8,8-heptamethyl-2-naphthalenecarbaldehyde. It is prepared by a process consisting in the addition of an olefin of formula ##STR1## wherein R.sup.1 and R.sup.2 represent different substituents and each defines a hydrogen atom or a methyl radical, with p-cymene. 4,4-Dimethyl-2-pentene [compound (III): R.sup.1 =CH.sub.3 ; R.sup.2 =H] is obtained by the co-metathesis reaction of an olefin of formula ##STR2## wherein R.sup.1 and R.sup.2 represent identical substituents designating each a hydrogen atom or a methyl radical, with an olefin of formula ##STR3## wherein R.sup.3 and R.sup.4, identical or different, designate each a hydrogen atom or a methyl radical in the presence of an appropriate catalyst consisting of Re.sub.2 O.sub.7 on an inert solid carrier, or of WCl.sub.6 /(C.sub.2 H.sub.5).sub.2 O/Bu.sub.4 Sn.
摘要翻译:PCT No.PCT / CH92 / 00128 Sec。 371日期1995年3月29日 102(e)1995年3月29日PCT PCT。1992年6月29日PCT公布。 出版物WO93 / 04023 日期1993年3月4日.1,1,2,3,4,4,6-七甲基-1,2,3,4-四氢萘(一种新型的萘化合物)可用作制备5,6,7 ,8-四氢-3,5,5,6,7,8,8-七甲基-2-萘甲醛。 它通过一种方法制备,该方法包括加入式取代基的烯烃,并且各自定义氢原子或甲基与对甲基异丙基苯。 4,4-二甲基-2-戊烯[化合物(III)):R1 = CH3; R2 = H]是通过式(I)的烯烃与式(Ⅰ)的烯烃(II)的共转换反应得到的,其中R 1和R 2表示与氢原子或甲基基团相同的取代基, )其中R 3和R 4相同或不同,在惰性固体载体或WCl 6 /(C 2 H 5)2 O / Bu 4 Sn上由Re 2 O 7组成的合适催化剂存在下,各自表示氢原子或甲基。
摘要:
Compositions or spices in the form of leaves, powders or particles are flavored with an emulsion containing an active volatile flavoring substance by directly spraying the exposed surface with the emulsion comprising the flavoring substance mixed with a solid film-building vehicle and an emulsifying agent.A flavoring process of this kind is particularly suitable for flavoring tea or products for preparing infusions or decoctions or spices, or for perfuming solid materials used for packaging.
摘要:
Process for the preparation of cycloaliphatic aldehydes of formula ##STR1## having either an isolated double bond in position 1 or 2 (endocyclic or exocyclic), or two conjugated double bonds in position 1 and 3 or 2(exocyclic) and 3 of the ring as indicated by the dotted lines, which process consists in subjecting to a deprotonation an ester of formula ##STR2## wherein the dotted lines have the above given meaning and Y designates an oxygen atom or a sulphur atom and R' stands for a linear or branched alkyl radical or a substituted or unsubstituted phenyl group, followed by H.sup..crclbar. addition and hydrolysis.
摘要:
New tricyclic carbonyl derivative, viz. cis-10,10-dimethyl-tricyclo[7.1.1.0.sup.2,7 ]undec-2-en-4-one, and its use as flavoring and perfuming material.