Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Armando Pineda-Contreras"'
Autor:
Juan Saulo González-González, Ana María Monserrat Martínez-Santiago, Francisco Javier Martínez-Martínez, María José Emparán-Legaspi, Armando Pineda-Contreras, Marcos Flores-Alamo, Héctor García-Ortega
Publikováno v:
Crystals, Vol 10, Iss 7, p 569 (2020)
Isoniazid is used as anti-tuberculosis drug which possesses functional groups capable of forming hydrogen bonds. A series of cocrystals of isoniazid (INH) with polyphenolic coformers such as catechol (CAT), orcinol (ORC), 2-methylresorcinol (MER), py
Externí odkaz:
https://doaj.org/article/0d33f43fa4e84fa493783e4f69249f84
Autor:
Oscar F. Vázquez-Vuelvas, René A. Enríquez-Figueroa, Héctor García-Ortega, Marcos Flores-Alamo, Armando Pineda-Contreras
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 2, Pp 161-164 (2015)
The title chalcone derivative, C13H10O2, adopts an E conformation about the C=C double bond. The molecule is composed of a furanyl and a phenyl ring, bridged by an α,β-unsaturated carbonyl system, which are inclined to one another by 24.07 (7)°. I
Externí odkaz:
https://doaj.org/article/e12660c81be049a98a22b4956b2a100e
Autor:
Marcos Flores-Alamo, Héctor García-Ortega, Laura Edith Negrete-López, Oscar Fernando Vázquez-Vuelvas, Armando Pineda-Contreras
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 12, Pp o1756-o1756 (2013)
The title compound, C16H15NO3, consists of an oxabicycle fused to an N-phenyl-substituted pyrrolidine ring anti to the double bond, affording the exo isomer. In the oxabicycle system, the six-membered ring presents a boat conformation, while the hete
Externí odkaz:
https://doaj.org/article/3a8ca5f6815d485d82229d01128483cb
Autor:
Oscar F. Vázquez-Vuelvas, Armando Pineda-Contreras, David Morales-Morales, Simón Hernández-Ortega, Mikhail Tlenkopatchev
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 12, Pp o3223-o3223 (2011)
The title compound, C25H23NO, consists of a biphenyl-4-carbonyl unit attached to an exocyclic double bond group at position 2 of an indole unit, which presents methyl groups as substituents at positions 1 and 3. The molecular conformation is s-cis wi
Externí odkaz:
https://doaj.org/article/c342f9fb710044c7ad8d3132e0568b74
Autor:
Juan Saulo González-González, Salvador Pérez-Espinoza, Francisco Javier Martínez-Martínez, Armando Pineda-Contreras, Miguel Ángel Canseco-Martínez, Marcos Flores-Alamo, Héctor García-Ortega
Publikováno v:
Acta Crystallographica Section C Structural Chemistry. 79:71-76
Sulfamethazine [N 1-(4,6-dimethylpyrimidin-2-yl)sulfanilamide] is an antimicrobial drug that possesses functional groups capable of acting as hydrogen-bond donors and acceptors, which make it a suitable supramolecular building block for the formation
Autor:
Octavio Barragán-Mares, Nancy E. Magaña-Vergara, Zeferino Gómez-Sandoval, Mikhail A. Tlenkopatchev, Armando Pineda-Contreras, René Alberto Enríquez-Figueroa, Kayim Pineda-Urbina
Publikováno v:
Journal of Molecular Structure. 1224:129287
Benzyne from trichlorobenzene has been employed for Diels-Alder cycloaddition with dienes, such as furan and 2,5-dimethylfuran, to synthesized novel dichloro-1,4-dihydro-1,4-epoxynaphtalene derivatives. These compounds have not been characterized or
Autor:
Julia V. Hernández-Madrigal, Armando Pineda-Contreras, Oscar F. Vázquez-Vuelvas, Serguei Fomine
Publikováno v:
e-Polymers. 16:181-188
The synthesis of novel norbornene based polyzwitterions via ring opening metathesis polymerization (ROMP) is present. Trifluoracetic acid (TFA) was used as a solvent to provide a homogenous medium for the polymerization reaction of sulfobetaines with
Autor:
Julia V. Hernández-Madrigal, Armando Pineda-Contreras, Reyna Reyes-Martínez, Simón Hernández-Ortega, David Morales-Morales, Oscar F. Vázquez-Vuelvas
Publikováno v:
Acta Crystallographica Section C Structural Chemistry. 71:175-180
Two isomeric pyridine-substituted norbornenedicarboximide derivatives, namelyN-(pyridin-2-yl)-exo-norbornene-5,6-dicarboximide, (I), andN-(pyridin-3-yl)-exo-norbornene-5,6-dicarboximide, (II), both C14H12N2O4, have been crystallized and their structu
Autor:
René Alberto Enríquez-Figueroa, Oscar F. Vázquez-Vuelvas, Héctor García-Ortega, Armando Pineda-Contreras, Marcos Flores-Alamo
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 2, Pp 161-164 (2015)
Acta Crystallographica Section E: Crystallographic Communications
Acta Crystallographica Section E: Crystallographic Communications
The crystal packing of the compound is described by an intermolecular arrangement with the molecules as interlaced layers in a zigzag fashion, denoting interacting self-complementary dimers mainly by the localization of weak hydrogen bonds in
Autor:
Héctor García-Ortega, Armando Pineda-Contreras, Zeferino Gómez-Sandoval, Julia V. Hernández-Madrigal, Oscar F. Vázquez-Vuelvas, Ruben Gavino-Ramirez, Mikhail A. Tlenkopatchev
Publikováno v:
Letters in Organic Chemistry. 8:249-257
N-heterocyclic norbornene Dicarboximides were synthesized by reacting the exo-norbornene-5,6-dicarboxylic anhydride with 2-, 3-, and 4-aminopyridine. The amides resulting from 3 and 4-aminopyridine derivatives were converted into the corresponding be