Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Ana M. Reverdito"'
Publikováno v:
Synthetic Communications. 42:2083-2097
An easy synthesis of 1-aryl-2-alkyl-4,5-dihydro-1H-imidazoles 1 by cyclo-condensation of N-acyl-N′-arylethylenediamines 2 is described. Such precursors were synthesized by aminolysis of the corresponding N-(2-bromoethyl)amides 3. Cyclizations were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c0a69e93f7c546519d344e62067249b
https://doi.org/10.1080/00397911.2011.552155
https://doi.org/10.1080/00397911.2011.552155
Publikováno v:
Educación Química. 14:65
La enseñanza de la química en los primeros años de universidad debe afrontar las dificultades de un estudiantado que no consigue adaptarse al nuevo sistema. Entre las posibles causas se encontrarían un currículo universitario extenso y un desigu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5de152d932378e993816cbb14ce9b5a
https://doi.org/10.22201/fq.18708404e.2003.2.66254
https://doi.org/10.22201/fq.18708404e.2003.2.66254
Autor:
Ana M. Reverdito, Gabriela Lorenzo
Publikováno v:
Educación Química. 15:372
El éxito en la universidad depende en gran medida, de la capacidad de adaptación de los estudiantes al nuevo sistema (Kirkwood y Symington, 1996) durante los primeros años de carrera. Más allá de las dificultades propias de la química orgánica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f759e7e6a202e69cc5b487507d65d71f
https://doi.org/10.22201/fq.18708404e.2004.4e.66158
https://doi.org/10.22201/fq.18708404e.2004.4e.66158
Publikováno v:
Journal of Planar Chromatography – Modern TLC. 20:227-230
When the components of a reaction mixture cannot be quantified by UV–visible spectrophotometry, because the λ max values of their absorption bands overlap, the components can be separated and quantified by spectrodensitometric thin-layer chromatog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e28b2c28401543094b78a83100fdd5cc
https://doi.org/10.1556/jpc.20.2007.3.11
https://doi.org/10.1556/jpc.20.2007.3.11
Publikováno v:
ChemInform. 43
The microwave-assisted cyclocondensation of N-aryl-N′-acyldiamines (I) gives easy access to title dihydroimidazoles (II).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::73ed6ee7357c5082c793da6dd04cfb7e
https://doi.org/10.1002/chin.201243112
https://doi.org/10.1002/chin.201243112
Publikováno v:
Journal of Heterocyclic Chemistry. 28:273-281
Reaction of 1,2-diaryl-3-methyl-1,4,5,6-tetrahydropyrimidinium iodides 1a-i with alkaline solutions afforded N-aroyl-N-aryl-N'-methyltrimethylenediamines 2a-i. Compounds 2 are stable under acid conditions but in neutral or alkaline media spontaneousl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbafef1091459fb2316e53ca26f4e049
https://doi.org/10.1002/jhet.5570280212
https://doi.org/10.1002/jhet.5570280212
Publikováno v:
Journal of Heterocyclic Chemistry. 18:933-937
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71d4dad65e7b322c5dcc0b699d718c27
https://doi.org/10.1002/jhet.5570180517
https://doi.org/10.1002/jhet.5570180517
Publikováno v:
Journal of Heterocyclic Chemistry. 20:1585-1588
Rate constants (kobs) of hydrolysis in sulfuric acid-water mixtures at 100° for five 1-aryl-2-phenyl-2-imidazolines were determined. The influence of substituents in the phenyl group at N-1 upon the rate of hydrolysis was studied. When the imidazoli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::194ee5ea0fe34c813cd3da5066a7d20c
https://doi.org/10.1002/jhet.5570200630
https://doi.org/10.1002/jhet.5570200630
Publikováno v:
Journal of Heterocyclic Chemistry. 24:1717-1724
Reaction of l-alkyl-2,3-diarylimidazolinium iodides 1a-i with alkaline solutions afforded N'-alkyl-N-aroyl-N-arylethylenediamines 2a-i. Compounds 2 are stable under acid conditions but in neutral or alkaline media rearrange giving N-alkyl-N-aroyl-N-a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3409864558c355d9a135d8f92c8572a5
https://doi.org/10.1002/jhet.5570240642
https://doi.org/10.1002/jhet.5570240642