Non-heme iron catalysis in C C, C–H, and CH2 oxidation reactions. Oxidative transformations on terpenoids catalyzed by Fe(bpmen)(OTf)2
作者:David Clemente-Tejeda、Alejandro López-Moreno、Francisco A. Bermejo
DOI:10.1016/j.tet.2013.02.013
日期:2013.4
The oxidation of terpene olefins with hydrogen peroxide in the presence of the non-hemo catalyst 5a afforded mixtures of epoxides whose composition was dependent upon the oxidation protocol used in each case. With terpenoid enones, the mixtures obtained evolved from clean epoxidation of α-ionone 23 to the clean allylic oxidation of damascone 28 due to the progressive deactivation of the electron density
A further step to sustainable palladium catalyzed oxidation: Allylic oxidation of alkenes in green solvents
作者:Maíra dos Santos Costa、Amanda de Camargo Faria、Rayssa L.V. Mota、Elena V. Gusevskaya
DOI:10.1016/j.apcata.2021.118349
日期:2021.9
The palladiumcatalyzedoxidation of alkenes with molecular oxygen is a synthetically important reaction which employs palladium catalysts in solution; therefore, a solvent plays a critical role for the process. In this study, we have tested several green solvents as a reaction medium for the allylic oxidation of a series of alkenes. Dimethylcarbonate, methyl isobutyl ketone, and propylene carbonate
The phytohormone abscisic acid (ABA), in addition to regulating physiological functions in plants, is also produced and released by several mammalian cell types, including human granulocytes, where it stimulates innate immune functions via an increase of the intracellular cAMP concentration ([cAMP]i).We synthesized several ABA analogs and evaluated the structure-activity relationship, by the systematical modification of selected regions of these analogs. The resulting molecules were tested for their ability to inhibit the ABA-induced increase of [cAMP]i in human granulocytes. The analogs with modified configurations at C-2' and C-3' abrogated the ABA-induced increase of the [cAMP]i and also inhibited several pro-inflammatory effects induced by exogenous ABA on granulocytes and monocytes. Accordingly, these analogs could be suitable as novel putative anti-inflammatory compounds. (C) 2014 Elsevier Ltd. All rights reserved.
ANTIPERSPIRANT AND DEODORANT COMPOSITIONS COMPRISING MALODOR REDUCTION COMPOSITIONS
申请人:The Procter & Gamble Company
公开号:US20160089317A1
公开(公告)日:2016-03-31
The present invention relates to antiperspirant and deodorant compositions comprising malodor reduction compositions and methods of making and using such antiperspirant and deodorant compositions. Such antiperspirant and deodorant compositions comprising the malodor control technologies disclosed herein provide malodor control without leaving an undesirable scent and when perfume is used to scent such compositions, such scent is not unduely altered by the malodor control technology.
The present invention relates to cleaning and/or treatment compositions comprising malodor reduction compositions and methods of making and using such cleaning and/or treatment compositions and malodor reduction compositions. As a result, such malodor reduction compositions do not unduely interfere with the scent of the perfumed or unperfumed cleaning and/or treatment compositions that comprise such compositions and the perfumed or unperfumed situs that is treated with such cleaning and/or treatment compositions.