CO2 Adducts of Phosphorus Ylides: Highly Active Organocatalysts for Carbon Dioxide Transformation
摘要:
A series of phosphorus ylide (P-ylide) CO2 adducts were synthesized and first used as organocatalysts for CO2 transformation. Detailed studies on the cycloaddition reaction of CO2 with terminal epoxides show that P-ylide CO2 adducts are efficient metal-free and halogen-free organocatalysts to mediate this reaction under ambient conditions (25 degrees C, 1 atm of CO2). More importantly, the reactions proceeded with a broad scope, high efficiency, and good functional group tolerance and the corresponding cyclic carbonate products were obtained in good to excellent yields (46-99%). Meanwhile, the kinetic study by in situ FTIR methods suggested an intermolecular cooperation effect for effectively accelerating the ring opening of terminal epoxides. Furthermore, from an investigation of the catalytic diversity of P-ylide CO2 adducts, CO2 also could be converted to functionalized cyclic alpha-alkylidene carbonates, oxazolidinone, and N-methylated and N-formylated amines by organocatalytic reactions.
NOUVEAUX DERIVES D'ACIDE 3-PHENYL PROPANOIQUE ACTIVATEURS DES RECEPTEURS DE TYPE PPAR, LEUR METHODE DE PREPARATION ET LEUR UTILISATION DANS DES COMPOSITIONS COSMETIQUES OU PHARMACEUTIQUES
申请人:Galderma Research & Development
公开号:EP2155662B1
公开(公告)日:2010-12-01
[EN] NOVEL DERIVATIVES OF 3-PHENYL PROPANOIC ACID ACTIVATING PPAR-TYPE RECEPTORS, METHOD FOR PREPARING SAME AND USE THEREOF IN COSMETIC OR PHARMACEUTICAL COMPOSITIONS<br/>[FR] NOUVEAUX DÉRIVÉS D'ACIDE 3-PHÉNYL PROPANOÏQUE ACTIVATEURS DES RÉCEPTEURS DE TYPE PPAR, LEUR MÉTHODE DE PRÉPARATION ET LEUR UTILISATION DANS DES COMPOSITIONS COSMÉTIQUES OU PHARMACEUTIQUES
申请人:GALDERMA RES & DEV
公开号:WO2008152333A2
公开(公告)日:2008-12-18
(EN) The invention relates to novel derivatives of 3-phenyl propanoic acid of the following general formula (I), to a method for preparing the same, and to the use thereof in pharmaceutical compositions used in human or veterinary medicine (in dermatology as well as in the field of cardio-vascular diseases, immune diseases and/or diseases related to lipid metabolism), or in cosmetic compositions.(FR) L'invention concerne de nouveaux dérivés d'acide 3-phényl propanoïque qui répondent à la formule générale (I) suivante : ainsi que leur méthode de préparation, et leur utilisation dans des compositions pharmaceutiques destinées à un usage en médecine humaine ou vétérinaire (en dermatologie, ainsi que dans le domaine des maladies cardio-vasculaires, des maladies immunitaires et/ou des maladies liées au métabolisme des lipides), ou bien encore dans des compositions cosmétiques.