An ionic liquid as reaction medium for the synthesis of halo-containing β-enaminones at room temperature
作者:Marcos A. P. Martins、Emerson A. Guarda、Clarissa P. Frizzo、Mara R. B. Marzari、Dayse N. Moreira、Nilo Zanatta、Helio G. Bonacorso
DOI:10.1007/s00706-008-0923-3
日期:2008.11
, Et , Bu , allyl, tert -amyl, CH2CH2OH, Bn , Ph ] were synthesized using the ionic liquid [bmim]BF4 at roomtemperature. It is demonstrated that this ionic liquid is a reaction medium suitable for the amination of β-alkoxyvinyl halomethyl ketones. The advantages of this method are the absence of solvents, short reaction times, and good yields.
一系列二十个卤代甲基化的β-烯酮[ R C(O)CH = C( R 1)N R 3 R 4,其中 R = CF 3,CCl 3,CHCl 2; R 1= H, Me , Ph ; R 3 = H, Me , Bu , Et ; R 4 = Me , Et , Bu ,烯丙基, 叔 戊基,CH 2在室温下使用离子液体[bmim] BF 4合成CH 2 OH, Bn 和 Ph ] 。已经证明该离子液体是适合于β-烷氧基乙烯基卤代甲基酮的胺化的反应介质。该方法的优点是无溶剂,反应时间短,产率高。
Interaction of fluoroalkyl-containing ?-diketones with amines
作者:V. I. Filyakova、Y. G. Ratner、N. S. Karpenko、K. I. Pashkevich
DOI:10.1007/bf01430731
日期:1996.9
The composition of products of the interaction of asymmetric fluoroalkyl-containing beta-diketones with amines was studied. Mixtures of regioisomeric beta-aminovinylketones and products of cleavage and secondary condensation are formed, depending on the temperature, the solvent, the nature of the fluorinated and nonfluorinated substituents in the beta-diketone, and the basicity of the amine. The major product is a beta-aminovinylketone in which the NH2 group is removed from the fluoroalkyl substituent. No beta-aminovinylimines, products of condensation involving two electrophilic centers, were observed.
Busygin, I. G.; Nikol'skii, A. L.; Rudaya, M. N., Journal of Organic Chemistry USSR (English Translation), 1984, vol. 20, p. 1793 - 1798
作者:Busygin, I. G.、Nikol'skii, A. L.、Rudaya, M. N.、Pashkevich, K. I.
DOI:——
日期:——
O-N, S-N and N-N exchange reactions at olefinic carbon atoms: Facile synthetic method for β-trifluoroacetylvinylamines