Highly pH-Dependent Chemoselective Transfer Hydrogenation of α,β-Unsaturated Aldehydes in Water
作者:Nianhua Luo、Jianhua Liao、Lu Ouyang、Huiling Wen、Jitian Liu、Weiping Tang、Renshi Luo
DOI:10.1021/acs.organomet.9b00353
日期:2019.8.12
electron-poor substituents on the aryl group of α,β-unsaturated aldehydes can be tolerated, affording the corresponding products in excellent yields with high TOF values. High selectivity and yields were also observed for α,β-unsaturated aldehydes with aliphatic substituents. Our mechanistic investigations indicate that the pH value is critical to the chemoselectivity.
BITTER TASTE MODIFIERS INCLUDING SUBSTITUTED 1-BENZYL-3-(1-(ISOXAZOL-4-YLMETHYL)-1H-PYRAZOL-4-YL)IMIDAZOLIDINE-2,4-DIONES AND COMPOSITIONS THEREOF
申请人:SENOMYX, INC.
公开号:US20160376263A1
公开(公告)日:2016-12-29
The present invention includes compounds and compositions known to modify the perception of bitter taste, and combinations of said compositions and compounds with additional compositions, compounds, and products. Exemplary compositions comprise one or more of the following: cooling agents; inactive drug ingredients; active pharmaceutical ingredients; food additives or foodstuffs; flavorants, or flavor enhancers; food or beverage products; bitter compounds; sweeteners; bitterants; sour flavorants; salty flavorants; umami flavorants; plant or animal products; compounds known to be used in pet care products; compounds known to be used in personal care products; compounds known to be used in home products; pharmaceutical preparations; topical preparations; cannabis-derived or cannabis-related products; compounds known to be used in oral care products; beverages; scents, perfumes, or odorants; compounds known to be used in consumer products; silicone compounds; abrasives; surfactants; warming agents; smoking articles; fats, oils, or emulsions; and/or probiotic bacteria or supplements.
COMPOUNDS FOR PREVENTING, REDUCING AND/OR ALLEVIATING ITCHY SKIN CONDITION(S)
申请人:SCHMAUS Gerhard
公开号:US20160008297A1
公开(公告)日:2016-01-14
The present invention primarily relates to the use of one or more specific compounds and/or one or more respective salt(s) thereof for preventing, reducing or alleviating itchy skin condition(s), and/or as PAR-2 antagonist. Furthermore, the present invention relates to compositions (products or, respectively, formulations), in particular for topical administration, preferably cosmetic or pharmaceutical compositions, in particular for preventing, reducing or alleviating one or more itchy skin conditions and/or for providing a PAR-2 antagonistic effect, comprising or consisting of an effect amount of such compound(s) and/or salt(s) and one or more cosmetically and/or pharmaceutically acceptable carriers.
Highly enantioselective hydrogenation of a variety of 2-substituted-2-alkenols has been achieved using a ChenPhosâRh complex as catalyst, giving â¥99% ee for most substrates. Optically active antifungal agent amorolfine was first synthesised using hydrogenation as the key step.
Two-tailed surfactants having one aromatic containing tail and their use
申请人:Mobil Oil Corporation
公开号:US04517128A1
公开(公告)日:1985-05-14
(Branched alkyl)-polyethoxyalkyl sulfonates, and similar compounds wherein the alkyl sulfonate moiety is replaced by a sulfate moiety, having an aromatic group on one of the branches of the branched alkyl group are provided. These compounds are surfactants which are particularly useful for chemical waterflooding, especially in high brine environments.