Twonovel flavonoids, linderatin (1) and linderatone (2), were isolated from the leaves of var. and , and the structures were determined on the basis of chemical and spectroscopic evidence.
USE OF CERTAIN ISOPROPYL METHYLCYCLOHEXENE THIOLS AS FRAGRANCES AND/OR FLAVORS
申请人:Ott Frank
公开号:US20100310479A1
公开(公告)日:2010-12-09
A description is provided of new compounds of formula (A) and in particular the use of a compound of formula (A) or a mixture of two or more compounds of formula (A), wherein the thiol group of each compound of formula (A) independently of one another in each case is linked with the carbon atom in position 3, 4, 5 or 6, as a fragrance or flavor for imparting, modifying and/or intensifying one, two or all the smell and/or taste notes grapefruit, tropical fruits and blackcurrant
Also described are fragrance and flavor compositions, preparations and methods.
2-(5-ISOPROPYL-2-METHYL-CYCLOHEX-2-EN- 1-YL-)ACETALDEHYDE AND 2-(6-ISOPROPYL- 3-METHYL-CYCLOHEX-2-EN-1-YL-) ACETALDEHYDE AS NEW ODORANTS
申请人:SYMRISE AG
公开号:US20220033338A1
公开(公告)日:2022-02-03
The present invention relates to novel compounds of formula (I)
as well as mixtures comprising or consisting of compounds of formula (I). Furthermore, the present invention relates to a process for the preparation of the compounds of formula (I) and to the use of the compounds of formula (I) as a perfuming ingredient, in particular as a lily of the valley perfuming ingredient. Ultimately, the present invention relates to perfume preparations and perfumed products or consumer goods comprising at least one of the compounds of formula (I).
TEMPO-Ru-BEA Composite Material for the Selective Oxidation of Alcohols to Aldehydes
作者:Jianying Deng、Karima Ben Tayeb、Chunyang Dong、Pardis Simon、Maya Marinova、Melanie Dubois、Jean-Charles Morin、Wenjuan Zhou、Mickael Capron、Vitaly V. Ordomsky
DOI:10.1021/acscatal.2c01554
日期:2022.8.5
separation of complexes prompted us to develop heterogeneouscatalysts by coordinating TEMPO over acid sites in zeolite BEA with encapsulated RuO2 nanoparticles. The catalyst demonstrates excellent activity, selectivity, and stability for the oxidation of alcohols to aldehydes. The analysis of the reaction mechanism confirms the activation of alcohols by TEMPO and the subsequent regeneration of TEMPOH