Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Christian Díaz-Oviedo"'
Publikováno v:
Revista Colombiana de Química, Vol 47, Iss 1, Pp 5-9 (2018)
Tyramine and N-benzyltyramine react with formaldehyde to form azacyclophanes by means of aromatic Mannich reactions and react with non-enolizable aldehydes to form the respective Schiff bases. In this paper we present the unexpected synthesis of N-fo
Externí odkaz:
https://doaj.org/article/06065b13c3784e838685ea6fdb612e47
Publikováno v:
Repositorio UN
Universidad Nacional de Colombia
instacron:Universidad Nacional de Colombia
Universidad Nacional de Colombia
instacron:Universidad Nacional de Colombia
La tiramina y la N-benciltiramina reaccionan con formaldehído para formar azaciclofanos por medio de condensaciones tipo Mannich aromáticas y reaccionan con aldehídos no enolizables para formar las respectivas bases de Schiff. En este artículo se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acd242d6107677bc5d36a5409424bad7
https://doi.org/10.15446/rev.colomb.quim.v47n1.63976
https://doi.org/10.15446/rev.colomb.quim.v47n1.63976
Publikováno v:
Journal of Molecular Structure. 1133:430-435
In this work it was established that dopamine's reaction with isatin produces the respective spiroisoquinoline through a Pictet-Spengler reaction whilst phenylethylamines, having less activated aromatic rings (tyramine and phenylethylamine), produce
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d93e3c165b7a02ca9e1e23d59f5a8f36
https://doi.org/10.1016/j.molstruc.2016.12.039
https://doi.org/10.1016/j.molstruc.2016.12.039
Autor:
Christian Díaz-Oviedo, Rodolfo Quevedo
Publikováno v:
Journal of Molecular Structure. 1202:127283
Tyramines (β-(4-hydroxyphenyl)ethylamines) present intermolecular associations via O–H⋯N hydrogen bonds, leading to the formation of “macrocyclization templates” in solution, which account for the obtained macrocyclic products in the aromati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::269b8710ac681c8b214a1b5d5df6f044
https://doi.org/10.1016/j.molstruc.2019.127283
https://doi.org/10.1016/j.molstruc.2019.127283
Publikováno v:
Research on Chemical Intermediates. 41:9835-9843
The influence of hydroxyl groups on the β-phenylethylamine aromatic ring was studied during its reaction with non-enolizable aldehydes. Computational calculations established that the degree of hydroxylation generates differences in the activation p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::936867d3b9a6466a411720b008a984d1
https://doi.org/10.1007/s11164-015-1987-4
https://doi.org/10.1007/s11164-015-1987-4
Autor:
Rodolfo Quevedo, Christian Díaz-Oviedo
Publikováno v:
Tetrahedron Letters. 55:6571-6574
A new method for synthesizing phenolic N -benzylazacyclophanes starting from tyramine is presented here. Computational calculations showed that macrocyclization is favored by the formation of hydrogen bond-based templates; these templates are not aff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::864b21dd437bb3e5a91d78be8d00ad7f
https://doi.org/10.1016/j.tetlet.2014.10.023
https://doi.org/10.1016/j.tetlet.2014.10.023
Publikováno v:
Tetrahedron Letters. 55:4216-4221
The study of the reaction of l -tyrosine or its tetrabutylammonium salt with formaldehyde was performed. The results established that this reaction does not lead to macrocyclic amino acid-type compounds, and in all cases, mixtures of linear oligomers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6932af9686f7ae69a37980014c88953b
https://doi.org/10.1016/j.tetlet.2014.05.048
https://doi.org/10.1016/j.tetlet.2014.05.048
Publikováno v:
Tetrahedron Letters. 53:1595-1597
New meso -macrocyclic α-amino esters were synthesized through the chemoselective hydrolysis of azacyclophanes derived from l -tyrosine (benzoxazinephanes). The results showed that the alkyl chain of the ester determined the chemoselectivity of the r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e622fbb1cc1d6a8e411d96fbdb1e20a
https://doi.org/10.1016/j.tetlet.2012.01.064
https://doi.org/10.1016/j.tetlet.2012.01.064