Structural sensitivity in phosphorylation of enamines—derivatives of β-aminocrotonic acid with diphenylchlorophosphine
摘要:
The reaction of 'push-pull' enamines-Aerivatives of beta-aminocrotonic acid with diphenylchlorophosphine has been investigated. Structural sensitivity of the reaction was found and is discussed. (C) 2003 Elsevier Ltd. All rights reserved.
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
Orthoesters, cyanoacetic acid and secondary amines react together, in a one step procedure, to produce ß-cyanoenamines.
正酯、氰乙酸和二级胺在一步法过程中反应,生成β-氰基烯胺。
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.
Unexpected Addition of Methyl 3,3,3-Trifluoropyruvate to ‘Push-Pull’ Enamines Having a Methyl Group at α-Position
作者:Aleksandr N. Kostyuk、Dmitriy M. Volochnyuk、Dmitriy A. Sibgatulin、Aleksandr E. Petrenko
DOI:10.1055/s-2004-831216
日期:——
The reaction of ‘push-pull’ enamines having a methyl group at the α-position with methyl 3,3,3-trifluoropyruvate was investigated. As a result, unexpected addition of pyruvate to methyl group was found and a set of polyfunctionalized β-dicarbonyl compounds was obtained. Possible mechanism of the reaction is discussed.
Mannich products have been isolated in good yields with methylene chloride as a C1 unit, instead of formaldehyde. It is evidenced that, contrary to previous understanding, a high pressure procedure is not necessary required and that the methylene bisamines function as intermediates.