Patent application number | Description | Published |
20100331398 | DERIVES DU GOSSYPOL ET DE L'APOGOSSYPOL, LEURS PREPARATIONS ET LEURS APPLICTIONS - Gossypol and apogossypol derivatives of general formula (1), preparation thereof and use thereof. | 12-30-2010 |
20120316337 | METHOD FOR PREPARING CHEMICAL COMPOUNDS OF INTEREST BY NUCLEOPHILIC AROMATIC SUBSTITUTION OF AROMATIC CARBOXYLIC ACID DERIVATIVES SUPPORTING AT LEAST ONE ELECTRO-ATTRACTIVE GROUP - Method for preparing carboxylic acid derivatives by aromatic nucleophilic substitution, in which a carboxylic acid derivative having a single carboxyl functional group, or one of the salts thereof, the carboxylic acid derivative having, in the ortho position of the carboxyl functional group, a leaving group, which is preferably an atom of fluorine or of chlorine or an alkoxy group, chiral or not, preferably a methoxy group, the carboxylic acid derivative not being substituted by an electro attractive group other than the leaving group if any; is reacted with a reactant MNu, where M is a metal and Nu is a nucleophile, chiral or not, the aromatic nucleophilic substitution reaction being carried out without a catalyst and without a step of protecting/deprotecting the acid functional group of the starting compound. | 12-13-2012 |
20120330056 | PROCESS FOR PREPARING CHEMICAL COMPOUNDS OF INTEREST BY NUCLEOPHILIC AROMATIC SUBSTITUTION OF AROMATIC CARBOXYLIC ACID DERIVATIVES SUPPORTING AT LEAST ONE ELECTRO-ATTRACTIVE GROUP - A method for preparing aromatic carboxylic acid derivatives by nucleophilic aromatic substitution, involves reacting an aromatic carboxylic acid derivative supporting only one carboxyl function, or one of the salts thereof, the carboxylic acid derivative supporting, orthogonally to the carboxyl function, a leaving group which is a fluorine or chlorine atom or an alkoxy group, chiral or otherwise and, in the latter case, preferably a methoxy group; the carboxylic acid derivative being substituted by at least one electro-attractive group other than the leaving group, preferably by a fluorine atom, with a MNu reagent, wherein M is a metal and Nu an optionally chiral nucleophile, the nucleophilic aromatic substitution reaction being carried out without a catalyst and without a step of protecting/unprotecting the acid function of the initial compound, the method being selective in that the reaction leads to the formation of ketone derivatives in a very minority fashion during the reaction. | 12-27-2012 |
Patent application number | Description | Published |
20120104170 | FUSELAGE ELEMENT COMPRISING A FUSELAGE SEGMENT AND JOINING MEANS - The invention relates to a fuselage element comprising a fuselage segment ( | 05-03-2012 |
20130056582 | LANDING GEAR MOUNTED UNDER AN AIRCRAFT WING - A landing gear mounted under an aircraft wing is provided. The aircraft can comprise a fuselage and wings each comprising at least one longitudinal spar connected to a wing box being part of the structure of the fuselage. The landing gear can comprise one leg that pivots, on its upper end, around a rotation axis to occupy at least one extended position and one retracted position and which is provided, on its lower end, with rolling means, the leg being connected, on its upper end, to the longitudinal spar of said wing. The landing gear can also comprise at least one inclined front strut connected, on its lower end, to said leg and connected, on its upper end, to the structure of the fuselage thru connecting means. The connecting means can comprise a sliding bearing crossed by at least one part of the upper end of said strut. | 03-07-2013 |
20130181092 | DEVICE AND METHOD FOR ASSEMBLING TWO SECTIONS OF AIRCRAFT FUSELAGE - Device for assembling two aircraft fuselage sections each comprising a skin and longitudinal stiffeners, the device comprising fishplates fishing couples of mutually aligned longitudinal stiffeners belonging respectively to said sections, each fishplate comprising two fishplate pieces each comprising at least one longitudinal sole plate intended to be fixed to a longitudinal stiffener, and a transverse support head, and at least one demountable connecting member able to mutually clamp the respective support heads of said fishplate pieces to allow a transmission of longitudinal forces between these fishplate pieces. | 07-18-2013 |