Francisco J. Martinez-Martinez

Dr. Francisco J. Martinez-Martinez

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Research Focus & Metrics

Academic Career Length

34Years (1993-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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3 December 2002 in Crystal Growth & Design
Verified
Journal Article
Closed access
EGEfrén V. García-Báez
Efrén V. García-Báez
Francisco J. Martinez-MartinezFrancisco J. Martinez-Martinez
Francisco J. Martinez-Martinez
HHHerbert Höpfl
Herbert Höpfl
IPItzia I. Padilla-Martinez
Itzia I. Padilla-Martinez

9 August 2010 in Molecules
Verified
Journal Article
Open access
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ACAlicia Corona-Bustamante
Alicia Corona-Bustamante
JVJuan Manuel Viveros-Paredes
Juan Manuel Viveros-Paredes
AFAngelina Flores-Parra
Angelina Flores-Parra
APAna Lilia Peraza-Campos
Ana Lilia Peraza-Campos
Francisco J. Martinez-MartinezFrancisco J. Martinez-Martinez
Francisco J. Martinez-Martinez
ARANGEL RAMOS-ORGANILLO
ANGEL RAMOS-ORGANILLO
In vitro antioxidant activity for 12 stannoxanes derived from Ph3SnCl (compounds 1-3), Ph2SnCl2 (compounds 4-6), Bu3SnCl (compounds 7-9), and Bu2SnCl2 (compounds 10-12), was assayed qualitatively by the chromatographic profile with 1,1-diphenyl-2-picrylhydrazil (DPPH) method and by two quantitative methods: the DPPH radical scavenging activity and Ferric-Reducing Antioxidant Power (FRAP) assays. The results were compared with those obtained with the starting materials 2-pyridine- carboxylic acid (I), 3-pyridinecarboxylic acid (II) and 4-pyridinecarboxylic acid (III), as well as with standard compounds, such as vitamin C and vitamin E, respectively. The in vitro antiradical activity with DPPH of diphenyltin derivative 5 showed a very similar behavior to vitamin C at a 20 µg/mL concentration, whereas according to the FRAP method, compound 8 was better. This difference is due to the mechanism of the antioxidant process. The Structure-Activity Relationships (SAR) for both methods is also reported.

1 January 1998 in Journal of the Chemical Society, Perkin Transactions 2
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Journal Article
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Francisco J. Martinez-MartinezFrancisco J. Martinez-Martinez
Francisco J. Martinez-Martinez
IPItzia I. Padilla-Martinez
Itzia I. Padilla-Martinez
MBM. A. Brito
M. A. Brito
EGE. D. Geniz
E. D. Geniz
RRR. C. Rojas
R. C. Rojas
RCR. Contreras
R. Contreras
This contribution describes the synthesis and structural investigation of the symmetric and non-symmetric oxamides N,N′-bis(2-hydroxyphenyl)oxamide 1, N,N′-bis(5-tert-butyl-2-hydroxyphenyl)oxamide 2, N,N′-bis(3,5-dimethyl-2-hydroxyphenyl)oxamide 3, N,N′-bis(2-hydroxybenzyl)oxamide 4, N,N′-diphenethyloxamide 5, N-(2-hydroxyphenyl)-N′-(2-methoxyphenyl)oxamide 6, N-(2-hydroxyphenyl)-N′-phenethyloxamide 7, (1S,2R)-(–)-N-(2-hydroxyphenylcarbamoylcarbonyl)norephedrine 8, (1R,2S)-(–)-N-(2-hydroxyphenylcarbamoylcarbonyl) 9, ethyl N-(2-hydroxyphenyl)oxalamate 10 and ethyl N-(2-methoxyphenyl)oxalamate 11. The structures were established by 1H, 13C, 15N and variable temperature NMR spectroscopy. Compounds 1–4 and 6–11 are stabilized by intramolecular three-center hydrogen bonding between the amide proton and two oxygen atoms. The 1H NMR Δδ/ΔT value of the amide proton correlates with the 15N NMR chemical shift. The X-ray diffraction molecular structures of 1 and 11 showed a planar conformation with trans configuration in the solid state, corresponding to the preferred conformation found in solution.

1 June 2004 in Journal of Electroanalytical Chemistry
Verified
Journal Article
Closed access
MGMartı́n Gómez
Martı́n Gómez
CGCarlos Z. Gómez-Castro
Carlos Z. Gómez-Castro
IPItzia I. Padilla-Martinez
Itzia I. Padilla-Martinez
Francisco J. Martinez-MartinezFrancisco J. Martinez-Martinez
Francisco J. Martinez-Martinez
FGFelipe J. González
Felipe J. González

1 October 1997 in Journal of Organometallic Chemistry
Verified
Journal Article
Closed access
HHHerbert Höpfl
Herbert Höpfl
NFNorberto Farfán
Norberto Farfán
DCDolores Castillo
Dolores Castillo
RSRosa Santillan
Rosa Santillan
RCRosalinda Contreras
Rosalinda Contreras
JDJean-Claude Daran
Jean-Claude Daran

23 April 2002 in Phytochemical Analysis
Verified
Journal Article
Closed access
PDF file
RGR. M. Perez Gutierrez
R. M. Perez Gutierrez
RSR. Vargas Solis
R. Vargas Solis
GGG. Diaz Gutierrez
G. Diaz Gutierrez
Francisco J. Martinez-MartinezFrancisco J. Martinez-Martinez
Francisco J. Martinez-Martinez