[EN] HALOGENATED HETEROALKENYL- AND HETEROALKYL-FUNCTIONALIZED ORGANIC COMPOUNDS AND METHODS FOR PREPARING SUCH COMPOUNDS<br/>[FR] COMPOSÉS ORGANIQUES HALOGÉNÉS À FONCTION HÉTÉROALCÉNYLE ET HÉTÉROALKYLE ET LEURS PROCÉDÉS DE PRÉPARATION
申请人:ARKEMA INC
公开号:WO2019067394A1
公开(公告)日:2019-04-04
A method for synthesizing halogenated organic compounds, such as halogenated alkenyl group-containing and halogenated alkyl group-containing compounds having a heteroatom (e.g., O,N.S) coupled to a carbon atom of a halogenated alkenyl or halogenated alkyl group, involves reacting a halogenated olefin such as a chloro-substituted trifluoropropenyl compound with an active hydrogen-containing organic compound such as an alcohol (e.g., an aliphatic monoalcohol, aliphatic polyalcohol, or a phenolic compound), a primary amine, a secondary amine or a thiol.
[EN] COMPOUNDS CONTAINING ALKYL-CYANO-BORATE OR ALKYL-CYANO-FLUOROBORATE ANIONS<br/>[FR] COMPOSÉS CONTENANT LES ANIONS ALKYLE, CYANO, BORATE OU ALKYLE, CYANO, FLUOROBORATE
申请人:MERCK PATENT GMBH
公开号:WO2013010641A1
公开(公告)日:2013-01-24
The invention relates to new compounds containing alkyl/alkenyl-cyano- borate or alkyl/a!kenyl-cyano-fluoroborate anions, their preparation and their use, in particular as part of electrolyte formulations for electrochemical or optoelectronic devices.
[EN] SYSTEM PROVIDING CONTROLLED DELIVERY OF GASEOUS CO FOR CARBONYLATION REACTIONS<br/>[FR] SYSTÈME PERMETTANT LA LIBÉRATION CONTRÔLÉE DE CO GAZEUX POUR RÉACTIONS DE CARBONYLATION
申请人:UNIV AARHUS
公开号:WO2012079583A1
公开(公告)日:2012-06-21
A carbonylation system comprising at least one carbon monoxide producing chamber and at least one carbon monoxide consuming chamber forming an interconnected multi-chamber system, said interconnection allowing carbon monoxide to pass from the at least one carbon monoxide producing chamber to the at least one carbon monoxide consuming chamber, said at least one carbon monoxide producing chamber containing a reaction mixture comprising a carbon monoxide precursor and a catalyst, said at least one carbon monoxide consuming chamber being suitable for carbonylation reactions, said interconnected multi- chamber system being sealable from the surrounding atmosphere during carbonylation.
Process for the preparation of 2-(ethoxymethyl)-tropane derivatives
申请人:Ehlenz Richard
公开号:US20050171145A1
公开(公告)日:2005-08-04
The present invention relates to a process for preparing a 2-(ethoxymethyl)-tropane derivative or a pharmaceutically acceptable salt thereof, by reacting the corresponding 2-(hydroxymethyl)-tropane derivative with ethyl bromide in the presence of a base, and a phase transfer catalyst.
Process for the preparation of threo-methylphenidate hydrochloride
申请人:ISP INVESTMENTS INC.
公开号:US20040176412A1
公开(公告)日:2004-09-09
The present invention provides a process for the preparation of threo-methylphenidate hydrochloride. According to a preferred embodiment, the process comprises the following steps:
(a) contacting 1-(phenylglyoxylyl)piperidine arenesulfonylhydrazone of the formula
1
wherein Ar denotes an aryl group, where the aryl group may be substituted by a C
1
-C
6
alkyl, halo or nitro group;
with an inorganic base in the presence of a water immiscible organic solvent and a phase transfer catalyst to obtain (R*,R*)-enriched 7-phenyl-1-azabicyclo[4.2.0]octan-8-one of the formula:
2
(b) reacting the (R*,R*)-enriched 7-phenyl-1-azabicyclo[4.2.0]octan-8-one prepared in step (a) with a solution of hydrogen chloride in methanol to obtain threo-enriched methylphenidate hydrochloride;
(c) crystallizing the threo-enriched methylphenidate hydrochloride prepared in step (b) to give the desired threo-methylphenidate hydrochloride. Preferably, the threo-methylphenidate hydrochloride produced by the process of the present invention contains no more than 1% of the erythro-isomer.