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
Synthesis and Reactions of Haloazodienes. A New and General Synthesis of Substituted Pyridazines
作者:Michael S. South、Terri L. Jakuboski、Mark D. Westmeyer、Daniel R. Dukesherer
DOI:10.1021/jo960029e
日期:1996.1.1
tetrahydropyridazines that are formed give high yields of substituted pyridazines upon treatment with base (Table 1). The sequence of a chloroazodiene cyclization to a tetrahydropyridazine followed by an aromatization constitutes a new and generalsynthesis of substituted pyridazines. In contrast to the haloazodiene cyclizations, the novel cyclization reactions of the in-situ generated 1-carbethoxy-3-phenyl-4
Pyridine and pyrimidine ring syntheses from 4-(4-morpholino)-3-pentenone and from ethyl 3-(4-morpholino)-2-butenoate
作者:Elaref S. Ratemi、Nivedita Namdev、Martin S. Gibson
DOI:10.1002/jhet.5570300609
日期:1993.12
3-Substituted 2(1H)-pyridones are produced from reaction of 4-(4-morpholino)-3-pentenone 1 with each of the following carbon acids: cyanoacetamide, malononitrile, cyanothioacetamide, acetylacetamide, benzoyl-acetonitrile. Reaction of ethyl 3-(4-morpholino)-2-butenoate 2 with cyanoacetamide gives the corresponding hydroxypyridone. Pyrimidines are formed by reaction of 1 and of 2 with benzamidine and with S-benzylthio-urea;
Condensation of enamines with 4-trimethylsilyl-3-dialkylamino-crotonate esters under acid catalysed conditions gives aromatic compounds according to a 3C+3C or a 4C+2C manner depending on the structure of the enamine.
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.