A process for preparing monoesters comprises the step of reacting at least one diol with at least one carboxylic acid in a biphasic solvent system, the carboxylic acid being sufficiently water soluble to allow esterification to occur, and the biphasic solvent system comprising water and at least one aprotic solvent in which the resulting monoester has greater solubility than in water.
Slow release of fragrant compounds in perfumery using alpha-keto esters
申请人:FIRMENICH SA
公开号:US20010014661A1
公开(公告)日:2001-08-16
The present invention describes a fragrance delivery system which releases fragrant aldehydes or ketones and/or fragrant compounds containing an olefin function upon exposure to light. This system comprises &agr;-keto esters of formula
1
in which R′* and R″* have the meaning as defined in the application and which are generally, in case of R′*, an alkyl group carrying an abstractable hydrogen in &ggr;-position relative to the &agr;-keto function and carrying a moiety from which is derived a fragrant compound containing an olefin function, and, in case of R″*, the organic part of a primary or secondary alcohol from R″*OH which is derived a fragrant aldehyde or ketone.
ENERGETIC COCRYSTALS FOR TREATMENT OF A SUBTERRANEAN FORMATION
申请人:HALLIBURTON ENERGY SERVICES, INC.
公开号:US20160177698A1
公开(公告)日:2016-06-23
The present invention relates to energetic cocrystals, and to methods for using the same for treatment of a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation, the method including obtaining or providing a composition including energetic cocrystals. Each energetic cocrystal independently includes an energetic compound and a secondary material. The method also includes placing the composition in a subterranean formation.
Process for preparing functional group-containing olefinic compounds
申请人:3M Innovative Properties Company
公开号:EP2314559A2
公开(公告)日:2011-04-27
A process for preparing functional group-containing olefinic compounds comprising the steps of (a) reacting (1) at least one functional group-containing nucleophile with (2) at least one carbonyl-containing compound that comprises at least one group that is a leaving group, or that is capable of subsequent conversion to a leaving group, and that optionally comprises one or more isolated carbon to carbon double or triple bonds, to form the corresponding functional group-containing carbonyl-containing compound, said carbonyl-containing compound being selected from the group consisting of ketones and aldehydes; and (b) reacting said functional group-containing carbonyl-containing compound with at least one alkylidene phosphorane comprising an alkylidene moiety and three other moieties bonded to its phosphorus atom, said alkylidene moiety optionally comprising one or more carbon to carbon double or triple bonds, to form a functional group-containing olefinic compound.
Scale-inhibiting cocrystals for treatment of a subterranean formation
申请人:Halliburton Energy Services, Inc.
公开号:US10253244B2
公开(公告)日:2019-04-09
The present invention relates to cocrystals including a scale-inhibiting compound, and methods of using the cocrystals for treating a subterranean formation. In various embodiments, the present invention provides a method of treating a subterranean formation including obtaining or providing a composition including cocrystals. Each cocrystal independently includes a scale-inhibiting compound and a secondary material. The method also includes placing the composition in a subterranean formation.