摘要:
A process for preparing tertiary alcohol esters represented by the general formula: Z-C(-R2)2-O-C(=O)-R3 [wherein Z is a mono- or poly-cyclic aromatic or nonaromatic ring; R2 is a hydrocarbon group; and R3 is a hydrocarbon group or a heterocyclic group], which comprises reacting a carboxylic acid derivative represented by the general formula: Z-C(=O)-R1 [wherein R1 is halogeno or OR (wherein R is hydrogen or hydrocarbyl)] with an organometallic compound represented by the general formula: R2-M [wherein M is a metal atom optionally bearing a ligand, or MgY (wherein Y is halogeno)] and a carboxylic acid halide represented by the general formula: X-C(=O)-R3[wherein X is halogeno].
摘要:
La présente invention a pour objet l'utilisation en parfumerie des composés de formule générale
Le nouveau caractère olfactif de ces composés est la combinaison des notes boisées avec des notes fruitées. Une synthèse pour la préparation des composés de formule (II) à partir des composés de formule (I) est décrite.
摘要:
The present invention aims to provide a novel compound useful as a perfume material and a perfume composition containing the same, as well as a perfumed product. The present invention provides a compound represented by the following general formula:
or
wherein R 1 , R 2 , R 3 and R 4 are each independently a hydrogen atom or a methyl group, Y 1 and Y 2 are each independently -O-CO-Z, -O-CO-O-Z or the like, Y 3 is -O-CO-Z 3 , where Z and Z 3 are each a linear or branched alkyl group containing 1 to 5 carbon atoms or a cycloalkyl group containing 3 to 5 carbon atoms or the like, and n is 2 or 3, and a perfume composition containing the same, as well as a product perfumed with the composition.
摘要:
Compounds of formula (Ia): wherein R1, R2, R3, R4a, R4b, R5 and R6 are defined herein, as well as other indene derivatives are disclosed herein. Pharmaceutical compositions containing the compounds and methods of using the compounds are also disclosed.
摘要:
The present invention relates to a new retinyl retinoate, a process for preparing same, a new intermediate which is useful for preparing same, and a cosmetic composition comprising the retinyl retinoate as the active ingredient.
摘要:
A substantially stable and relatively non-hygroscopic composition corresponding to substantially equimolar quantities of acetylsalicylic acid, potassium acetylsalicylate and potassium bicarbonate, which exhibits properties as a non-physical mixture, and process for preparing it.
摘要:
Die Erfindung betrifft neue flüssigkristalline Tercyclohexyle der Formel
worin
R eine Alkylgruppe mit 1-12 C-Atomen, worin eine oder zwei nicht benachbarte CH 2 -Gruppen durch O ersetzt sein können, X -CN, -COOR 1 , -OOCR 1 , -COR 1 oder R 1 und R 1 eine Alkylgruppe mit 1-12 C-Atomen bedeuten, mit der Maßgabe, daß im Falle X = R 1 in der Alkylgruppe R mindestens eine CH 2 -Gruppe durch O ersetzt ist, ein Verfahren zur Herstellung dieser Verbindungen sowie flüssigkristalline Dielektrika, die mindestens eine Komponente der Verbindungen der Formell enthalten.
摘要翻译:本发明涉及下式:其中R是具有1-12个C原子,其中一个或两个非相邻的CH 2个基团可以被O替代的烷基的新型液晶Tercyclohexyle,X是-CN,-COOR 1,-OOCR1,-COR1或R1和 R 1表示具有1-12个碳原子的情况下R =烷基基团中的至少一个CH 2基团被O X R1,用于制备这些化合物和含有至少一种组分的液晶电介质的方法替代的烷基,条件 含有下式的化合物。
摘要:
Compounds of formula (Ia): wherein R1, R2, R3, R4a, R4b, R5 and R6 are defined herein, as well as other indene derivatives are disclosed herein. Pharmaceutical compositions containing the compounds and methods of using the compounds are also disclosed.