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Ricardo Vessecchi
Ricardo Vessecchi
Prof. Dr. on Physical Chemistry, FFCLRP, Universidade de São Paulo
Verified email at usp.br
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Fragmentation reactions using electrospray ionization mass spectrometry: an important tool for the structural elucidation and characterization of synthetic and natural products
DP Demarque, AEM Crotti, R Vessecchi, JLC Lopes, NP Lopes
Natural Product Reports 33 (3), 432-455, 2016
4752016
Espectrometria de massas com ionização por" electrospray": processos químicos envolvidos na formação de íons de substâncias orgânicas de baixo peso molecular
AEM Crotti, R Vessecchi, JLC Lopes, NP Lopes
Química nova 29, 287-292, 2006
1092006
Radical ion generation processes of organic compounds in electrospray ionization mass spectrometry
R Vessecchi, AE M Crotti, T Guaratini, P Colepicolo, SE Galembeck, ...
Mini-Reviews in Organic Chemistry 4 (1), 75-87, 2007
942007
Fragmentation of diketopiperazines from Aspergillus fumigatus by electrospray ionization tandem mass spectrometry (ESI‐MS/MS)
NAJC Furtado, R Vessecchi, JC Tomaz, SE Galembeck, JK Bastos, ...
Journal of mass spectrometry 42 (10), 1279-1286, 2007
712007
A theoretical and mass spectrometry study of the fragmentation of mycosporine-like amino acids
KHM Cardozo, R Vessecchi, VM Carvalho, E Pinto, PJ Gates, ...
International Journal of Mass Spectrometry 273 (1-2), 11-19, 2008
692008
New chemical evidence for the ability to generate radical molecular ions of polyenes from ESI and HR-MALDI mass spectrometry
T Guaratini, RL Vessecchi, FC Lavarda, PMBGM Campos, Z Naal, ...
Analyst 129 (12), 1223-1226, 2004
642004
Balance of xanthophylls molecular and protonated molecular ions in electrospray ionization
T Guaratini, R Vessecchi, E Pinto, P Colepicolo, NP Lopes
Journal of mass spectrometry 40 (7), 963-968, 2005
632005
Directed metalation of 1-ester-substituted indolizines: base/electrophile-controlled regioselective functionalization
MFZJ Amaral, AA Baumgartner, R Vessecchi, GC Clososki
Organic letters 17 (2), 238-241, 2015
532015
Re‐examination of the anion derivatives of isoflavones by radical fragmentation in negative electrospray ionization tandem mass spectrometry: experimental and computational studies
R Vessecchi, G Julião Zocolo, D Rubio Gouvea, F Hübner, B Cramer, ...
Rapid Communications in Mass Spectrometry 25 (14), 2020-2026, 2011
482011
Nomenclaturas de espectrometria de massas em língua portuguesa
R Vessecchi, NP Lopes, FC Gozzo, FA Dörr, M Murgu, DT Lebre, R Abreu, ...
Química Nova 34, 1875-1887, 2011
462011
Metabolic profile and safety of piperlongumine
F de Lima Moreira, MD Habenschus, T Barth, LMM Marques, AC Pilon, ...
Scientific Reports 6 (1), 33646, 2016
382016
Evaluation of the enthalpy of formation, proton affinity, and gas-phase basicity of γ-butyrolactone and 2-pyrrolidinone by isodesmic reactions
R Vessecchi, SE Galembeck
The Journal of Physical Chemistry A 112 (17), 4060-4066, 2008
372008
In vitro metabolism of the alkaloid piplartine by rat liver microsomes
LMM Marques, EA da Silva-Junior, DR Gouvea, R Vessecchi, MT Pupo, ...
Journal of Pharmaceutical and Biomedical Analysis 95, 113-120, 2014
362014
Generation of naphthoquinone radical anions by electrospray ionization: Solution, gas-phase, and computational chemistry studies
R Vessecchi, Z Naal, JNC Lopes, SE Galembeck, NP Lopes
The Journal of Physical Chemistry A 115 (21), 5453-5460, 2011
362011
Electrospray ionization mass spectrometry: chemical processes involved in the ion formation from low molecular weight organic compounds
AEM Crotti, JLC Lopes, NP Lopes
Química Nova 29 (2), 287-292, 2006
362006
Fragmentation studies and electrospray ionization mass spectrometry of lapachol: protonated, deprotonated and cationized species
R Vessecchi, FS Emery, SE Galembeck, NP Lopes
Rapid Communications in Mass Spectrometry 24 (14), 2101-2108, 2010
342010
Directed Functionalization of Halophenyl‐2‐oxazolines with TMPMgCl· LiCl
JHC Batista, FM dos Santos, LA Bozzini, R Vessecchi, ARM Oliveira, ...
European Journal of Organic Chemistry 2015 (5), 967-977, 2015
332015
Gas‐phase fragmentation of γ‐lactone derivatives by electrospray ionization tandem mass spectrometry
AEM Crotti, ES Bronze‐Uhle, PGBD Nascimento, PM Donate, ...
Journal of mass spectrometry 44 (12), 1733-1741, 2009
312009
Application of computational quantum chemistry to chemical processes involved in mass spectrometry
R Vessecchi, SE Galembeck, NP Lopes, PGBD Nascimento, AEM Crotti
Química Nova 31, 840-853, 2008
312008
Gas‐phase reactivity of 2‐hydroxy‐1, 4‐naphthoquinones: a computational and mass spectrometry study of lapachol congeners
R Vessecchi, FS Emery, SE Galembeck, NP Lopes
Journal of mass spectrometry 47 (12), 1648-1659, 2012
282012
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