A direct method for the preparation of tertiary 3-amino-propenones and 3-aminopropenoates from β-diketones and β-keto esters, and secondaryamines has been developed. The reaction is performed without solvent in the presence or absence of Lewis acid as catalyst, depending on the reactivity of both the amine and the diketo substrate.
Reaction of enamines with trifluoromethyl containing carbonyl reagents
作者:Dmitriy A. Sibgatulin、Tatyana E. Shubina、Aleksandr N. Kostyuk、Dmitriy M. Volochnyuk、Reinhard Schmutzler、Peter G. Jones、Aleksandr M. Pinchuk
DOI:10.1016/j.jfluchem.2009.10.014
日期:2010.2
The reaction of linear push–pull enamines bearing a methyl group at the α-position with a set of trifluoromethylated carbonyl compounds was investigated. It has been found that the reaction proceeds at the methyl group of the enamines. The first computational study of the reaction between push–pull enamines and strong electrophilic reagents was reported. Out of three pathways considered DFT and MP2
[EN] METHOD FOR FLUOROALKYLATION OF ENAMINES<br/>[FR] PROCÉDÉ DE FLUOROALKYLATION D'ÉNAMINES
申请人:LONZA AG
公开号:WO2020249759A1
公开(公告)日:2020-12-17
The invention discloses a method for fluoroalkylation of enamines with a fluoro alkyl halide in the presence of a base.
该发明揭示了一种在碱存在下使用氟烷基卤代烃对烯胺进行氟烷基化的方法。
Reaction of unsymmetrical trifluoromethyl-containing 1,3-dicarbonyl compounds with ‘push–pull’ enamines
作者:Dmitriy A. Sibgatulin、Dmitriy M. Volochnyuk、Alexander N. Kostyuk
DOI:10.1016/j.tetlet.2007.02.044
日期:2007.4
The reaction of ‘push–pull’ enamines with trifluoromethyl-containing 1,3-dicarbonyl compounds was investigated. It was found that the reaction is sensitive both to the structure of the enamines and to reaction conditions. As a result, a set of various trifluoromethyldialkylanilines was obtained.
Synthesis of 4-Dialkylamino-6-Trifluoromethyl-5,6-dihydro-2-pyridinones via Cyclization of Enamines with α-Chloro-β,β,β-trifluoroethylisocyanates
作者:Aleksandr N. Kostyuk、Dmitriy M. Volochnyuk、Andrei V. Bol’but、Dmitriy A. Sibgatulin、Andrei S. Kuklya、Mikhail V. Vovk
DOI:10.1055/s-2004-831165
日期:——
The interaction of α-chloro-β,β,β-trifluoroethylisocyanates with ‘push-pull’ enamines having a methyl group at the α-position was investigated. As a result, a set of 4-dialkylamino-6-trifluoromethyl-5,6-dihydro-2-pyridinones was obtained. Structural sensitivity of the reaction was found and discussed.