[DE] VERFAHREN ZUR HERSTELLUNG EINES N-(1-ARYL-ALK-1-ENYL)-ACETAMIDS ODER N-(1-HETEROARYL-ALK-1-ENYL)-ACETAMIDS<br/>[EN] METHOD FOR PRODUCING AN N-(1-ARYL-ALK-1-ENYL)-ACETAMIDE OR N-(1-HETEROARYL-ALK-1-ENYL)-ACETAMIDE<br/>[FR] PROCEDE DE FABRICATION D'UN N-(1-ARYLE-1-ALCENYLE)-ACETAMIDE OU D'UN N-(1-HETEROARYLE-1-ALCENYLE)-ACETAMIDE
申请人:BASF AG
公开号:WO2006087324A2
公开(公告)日:2006-08-24
[EN] The invention relates to a method for producing an N-(1-aryl-alk-1-enyl)-acetamide or N-(1-heteroaryl-alk-1-enyl)-acetamide. According to the invention, an N-(alk-1-enyl)-acetamide is reacted with an aryl- or heteroaryl-chloride, bromide, iodide or triflate in the presence of a) a Pd-catalyst and b) water and/or an ionic liquid, and c) dimethylformamide (DMF), N,N-dimethylacetamide (DMAC) and/or surplus N-(alk-1-enyl)-acetamide. [FR] L'invention concerne un procédé de fabrication d'un N-(1-aryle-1-alcényle)-acétamide ou d'un N-(1-hétéroaryle-1-alcényle)-acétamide consistant à faire réagir un N-(1-alcényle)-acétamide avec un chlorure, bromure, iodure ou triflate d'aryle ou d'hétéroaryle en présence a) d'un catalyseur Pd, b) d'eau et/ou d'un liquide ionique et c) de diméthylformamide (DMF), de N,N-diméthylacétamide (DMAC) et/ou de N-(1-alcényle)-acétamide excédentaire. [DE] Verfahren zur Herstellung eines N-(1-Aryl-alk-1-enyl)-acetamids oder N-(1-Heteroaryl- alk-1-enyl)-acetamids, wobei man ein N-(AIk-I -enyl)-acetamid mit einem Aryl- oder Heteroaryl-chlorid, bromid, iodid oder triflat in Gegenwart a) eines Pd-Katalysators und b) Wasser und/oder einer ionischen Flüssigkeit, und c) Dimethylformamid (DMF), N,N-Dimethylacetamid (DMAC) und/oder überschüssigem N-(Alk-1-enyl)-acetamid umsetzt.
Synthesis of β,γ-unsaturated primary amides from α,β-unsaturated acids and investigation of the mechanism
α,β-Unsaturated acids, through their acid chlorides, react with tritylamine in the presence of triethylamine under mild conditions, to afford in high yield and high regioselectivity the corresponding β,γ-unsaturated tritylamides. Detritylation with TFA generates quantitatively β,γ-unsaturated primary amides. An investigation of this deconjugative isomerization was performed.
Aza- and oxacarbonylations of allyl phosphates catalyzed by rhodium carbonyl cluster. Selective synthesis of β, γ-unsaturated amides, esters, and acids
作者:Yasushi Imada、Ou Shibata、Shun-Ichi Murahashi
DOI:10.1016/0022-328x(93)83025-q
日期:1993.6
Rhodium-catalyzed carbonylation of allyl phosphates under CO (20 atm) at 50°C proceeds very efficiently in the presence of amines, alcohols, and water to give the corresponding β,γ-unsaturated amides, esters, and acids, respectively. These carbonylations occur with high regioselectivity at the less substituted carbon of allyl unit to give linear β,γ-unsaturated acid derivatives.