Novel indanylidene compounds can be used as UV-A filters in cosmetic compositions for protecting skin and hair and for technical applications.
新型吲哚亚甲基化合物可用作化妆品配方中的紫外A过滤剂,用于保护皮肤和头发以及技术应用。
Indanylidene compounds
申请人:Symrise GmbH & Co. KG
公开号:US07208142B2
公开(公告)日:2007-04-24
Novel indanylidene compounds can be used as UV-A filters in cosmetic compositions for protecting skin and hair and for technical applications.
新型的吲哚基化合物可以作为紫外线A过滤剂,用于化妆品配方中,以保护皮肤和头发,也可以用于技术应用。
Neue Indanylidenverbindungen
申请人:Symrise GmbH & Co. KG
公开号:EP1466892A1
公开(公告)日:2004-10-13
Neue Indanylidenverbindungen können als UV-A-Filter in kosmetischen Mitteln zum Schutz von Haut und Haaren und für technische Anwendungen verwendet werden.
新型亚茚基化合物可用作化妆品中的 UV-A 过滤器,以保护皮肤和头发,也可用于技术应用。
Darzens, Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences, 1940, vol. 211, p. 435
作者:Darzens
DOI:——
日期:——
NHC Ligand-Enabled, Palladium-Catalyzed Non-Directed C(sp<sup>3</sup>)–H Carbonylation To Access Indanone Cores
作者:Shou-Le Cai、Yan Li、Chi Yang、Jie Sheng、Xi-Sheng Wang
DOI:10.1021/acscatal.9b03426
日期:2019.11.1
A palladium-catalyzed C(sp(3))-H carbonylation of alkylated aryl triflates or bromides under 1 atm of CO has been developed, in which no directing group or oxidant was required. The essence of this reaction is the combination of appropriate NHC ligands with palladium to facilitate the formation of the five-membered cyclopalladium intermediate. Mechanism studies suggest that the insertion of carbon monoxide into two five-membered cyclopalladium species generated via palladium migration might be the crucial step for this transformation. This method offers an efficient solution for expedient construction of indanone cores, which are valuable synthons and pharmacophores ubiquitously found in numerous natural products.