Zobrazeno 1 - 10
of 15
pro vyhledávání: '"David Ortegón-Reyna"'
Autor:
Juan Saulo González-González, Raquel Jiménez-López, David Ortegón-Reyna, Gabino Gonzalez-Carrillo, Francisco Javier Martínez-Martínez
Publikováno v:
Applied Sciences, Vol 11, Iss 9, p 3810 (2021)
Pharmaceutical cocrystallization offers the possibility to modify the physicochemical and biopharmaceutical properties of active pharmaceutical ingredients. The mechanochemical synthesis and spectroscopic characterization of the catechol-theophylline
Externí odkaz:
https://doaj.org/article/186f6bca73014e15b9e903507938fa15
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 1973-1984 (2015)
This paper reports the synthesis of a series of piperidones 1–8 by the Mannich reaction and analysis of their structures and conformations in solution by NMR and mass spectrometry. The six-membered rings in 2,4,6,8-tetraphenyl-3,7-diazabicyclo[3.3.
Externí odkaz:
https://doaj.org/article/0baca4d4e6974054889defd3069bf0c4
Autor:
David Ortegón-Reyna, Cesar Garcías-Morales, Itzia Padilla-Martínez, Efren García-Báez, Armando Aríza-Castolo, Ana Peraza-Campos, Francisco Martínez-Martínez
Publikováno v:
Molecules, Vol 19, Iss 1, Pp 459-481 (2013)
An NMR titration method has been used to simultaneously measure the acid dissociation constant (pKa) and the intramolecular NHO prototropic constant ΔKNHO on a set of Schiff bases. The model compounds were synthesized from benzylamine and substitute
Externí odkaz:
https://doaj.org/article/dc33a5d05ab441f188a025bb64d6e132
Autor:
Fátima Vélez-González, David Ortegón-Reyna, Ángel A. Ramos-Organillo, Ana L. Peraza-Campos, Teresa Sumaya-Martínez, Rafael Tapia-Benavides, Francisco J. Martínez-Martínez
Publikováno v:
ARKIVOC, Vol 2008, Iss 5, Pp 55-64 (2007)
Externí odkaz:
https://doaj.org/article/f4925b43b046480e805f357af52776bf
Autor:
Jorge Gonzalez, Roberto Atilano-Coral, Ana Lilia Peraza-Campos, David Ortegón-Reyna, Eleuterio Álvarez
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 6, Pp o1308-o1309 (2011)
The title compound, C15H30N22+·2Br−·H2O, was synthesized by reaction of 4-piperidinopiperidine with dibromopentane. The dication is built up from three linked piperidine rings, two of which have one quaternary N atom in common (azoniaspiro), wher
Externí odkaz:
https://doaj.org/article/4680adc4068e4d7ebb814f85391505bf
Autor:
Francisco J. Martínez-Martínez, Juan Saulo González-González, David Ortegón-Reyna, Gabino Gonzalez-Carrillo, Raquel Jiménez-López
Publikováno v:
Applied Sciences, Vol 11, Iss 3810, p 3810 (2021)
Applied Sciences
Volume 11
Issue 9
Applied Sciences
Volume 11
Issue 9
Pharmaceutical cocrystallization offers the possibility to modify the physicochemical and biopharmaceutical properties of active pharmaceutical ingredients. The mechanochemical synthesis and spectroscopic characterization of the catechol-theophylline
Autor:
Mónica Díaz-Fernández, Alberto Ávila-Castro, Armando Ariza-Castolo, David Ortegón-Reyna, Javier Peralta-Cruz
Publikováno v:
New Journal of Chemistry. 40:5501-5515
An experimental and theoretical study of the regioselective Riley oxidation was conducted on a series of 2,3-dimethyl-6-substituted-quinoxalines bearing EWG (NO2, CN, CF3, Cl, Br, F, COOH, COOMe, COPh) and EDG (2,3-dimethylquinoxaline, OMe, OH, NH2)
Autor:
Efrén V. García-Báez, Itzia I. Padilla-Martínez, Armando Ariza-Castolo, David Ortegón-Reyna, Cesar Garcias-Morales, Francisco J. Martínez-Martínez, Ana Lilia Peraza-Campos
Publikováno v:
Molecules, Vol 19, Iss 1, Pp 459-481 (2013)
Molecules; Volume 19; Issue 1; Pages: 459-481
Molecules
Molecules; Volume 19; Issue 1; Pages: 459-481
Molecules
An NMR titration method has been used to simultaneously measure the acid dissociation constant (pKa) and the intramolecular NHO prototropic constant ΔKNHO on a set of Schiff bases. The model compounds were synthesized from benzylamine and substitute
Autor:
Francisco J. Martínez-Martínez, Ana Lilia Peraza-Campos, Teresa Sumaya-Martínez, Fátima Vélez-González, Rafael Tapia-Benavides, David Ortegón-Reyna, Ángel Ramos-Organillo
Publikováno v:
ARKIVOC, Vol 2008, Iss 5, Pp 55-64 (2007)
Herein we report the structural study and antioxidant activity of (2E)-N-(2-(morpholin-4-yl) ethyl)-cinnamanilide (1) and its salt (1-HCl). Compound 1 crystallizes as orthorhombic Pbca system while its salt is monoclinic P21/n. The supramolecular str
Autor:
Margarita Bernabé-Pineda, Francisco J. Martínez-Martínez, Oscar Zúñiga-Lemus, Juan Saulo González-González, David Ortegón-Reyna, Rogelio A. Delgado-Alfaro, Marlene M. Saucedo-Balderas
Publikováno v:
Journal of the Brazilian Chemical Society.
The synthesis, density functional theory (DFT) molecular structure and Fourier transform infrared spectroscopy (FTIR) molecular recognition study of diethyl phenylenebis(methylene) dicarbamates with 1,2- and 1,3-benzenediols is described. The formati