Method for the Synthesis of Cyclic Acetals by the Reactive Extraction of a Polyol in a Concentrated Solution
申请人:Dubois Jean-Luc
公开号:US20100099894A1
公开(公告)日:2010-04-22
A method for the synthesis of cyclic acetals comprises reacting at least one carbonyl-function compound selected from aldehydes, ketones, and/or linear acetals, on a polyol in a concentrated aqueous solution exceeding 20 wt % in a reactor containing an acidic catalyst. The carbonyl-function compound is selected so that the cyclic acetal obtained has a water solubility lower than 20000 mg/kg. During the catalytic reaction for the cyclic acetal synthesis, at least one portion of the organic phase containing the cyclic acetal is separated. The acidic catalysis is either homogeneous when using a water-soluble strong acid, or heterogeneous when using a solid acid such as a resin, a zeolite, or any appropriately acidified solid. The extractive reaction method can be used for obtaining high conversions and selectivity.
LUBRICATING COMPOSITION CONTAINING 1,3-DIOXOLANE-4-METHANOL COMPOUNDS AS ANTIWEAR ADDITIVES
申请人:Chevron Oronite Company LLC
公开号:EP2643439B1
公开(公告)日:2014-12-17
SILICONE COMPOUNDS
申请人:The Procter & Gamble Company
公开号:EP3649183A1
公开(公告)日:2020-05-13
COMPOSITIONS AND METHODS FOR IDENTIFYING LIGANDS OF ODORANT RECEPTORS
申请人:Matsunami Hiroaki
公开号:US20100248390A1
公开(公告)日:2010-09-30
The present invention relates to compositions and methods for identifying odorant-odorant receptor interactions. In particular, the present invention relates to in silico methods for identifying odorant receptor-odorant interactions based on chemical and physical properties of odorant receptors and odorants.