Výsledky vyhledávání - "Alex M. Manfredi"

Highly luminescent liquid crystals by connecting 1,3,4-oxadiazole with thiazolo[5,4-d]thiazole units

Autor: Giliandro Farias, Cristian A. M. Salla, Ivan H. Bechtold, Hugo Gallardo, Arthur B.S. de Santos, Juliana Eccher, Ivani Malvestiti, Sergio F. Curcio, Alex M. Manfredi, Thiago Cazati, Eduardo H.L. Falcão, Edivandro Girotto, Eduard Westphal

Publikováno v: Journal of Molecular Liquids. 321:114887

The direct bonding between a thiazolo[5,4-d]thiazole and two 1,3,4-oxadiazole units allowed us to create a new and versatile rigid core for luminescent liquid crystal, which showed interesting and variable mesomorphic and photophysical properties. Fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d5682023cbf624f948d747b1b37a331f
https://doi.org/10.1016/j.molliq.2020.114887

Zobrazit plný text záznamu

Mechanistic Aspects of Phosphate Diester Cleavage Assisted by Imidazole. A Template Reaction for Obtaining Aryl Phosphoimidazoles

Autor: Alvan C. Hengge, Faruk Nome, Alex M. Manfredi, Thaís C. F. Oliveira, Mozart S. Pereira, Tiago A. S. Brandão, Bárbara Murta

Publikováno v: The Journal of Organic Chemistry. 81:8663-8672

Phosphoimidazole-containing compounds are versatile players in biological and chemical processes. We explore catalytic and mechanistic criteria for the efficient formation of cyclic aryl phosphoimidazoles in aqueous solution, viewed as a template rea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c29e49949ec828f455d67af25a3feb0
https://doi.org/10.1021/acs.joc.6b01358

Zobrazit plný text záznamu

Rapid cleavage of phosphate triesters by the oxime 2-(hydroxyimino)-N -phenyl-acetamide

Autor: Faruk Nome, Angelo C. Pinto, Eduardo H. Wanderlind, Bárbara V. Silva, Bruno S. Souza, Alex M. Manfredi, Willian Demos

Publikováno v: Journal of Physical Organic Chemistry. 29:600-603

We report the dephosphorylation reactions of the organophosphates diethyl 2,4-dinitrophenyl phosphate (DEDNPP) and dimethyl 4-nitrophenyl phosphate (methyl paraoxon) by the oxime 2-(hydroxyimino)-N-phenyl-acetamide (Ox 1). Rate enhancements of 107-fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93e0b71f967e41d728223e784015fafe
https://doi.org/10.1002/poc.3549

Zobrazit plný text záznamu

Supramolecular phosphate transfer catalysis by pillar[5]arene

Autor: Faruk Nome, Michelle Medeiros, Alex M. Manfredi, Luis García-Río, Rodrigo Montecinos, Daiane G. Liz, Borja Gómez-González

Publikováno v: Chemical Communications. 52:3167-3170

A kinetic study on dinitrophenylphosphate monoester hydrolysis in the presence of a cationic pillararene, P5A, has been carried out. Formation of the supramolecular complex between phosphate ester and P5A has been studied by NMR showing complexation-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e25563bb13aaeeb8e50755b24a971424
https://doi.org/10.1039/c5cc10214f

Zobrazit plný text záznamu

The spontaneous hydrolysis of 2-pyridyl phosphate is a good model for the special mechanism for the hydrolysis of phosphate monoester monoanions

Autor: Faruk Nome, Anthony J. Kirby, Alex M. Manfredi, Michelle Medeiros

Publikováno v: Journal of Physical Organic Chemistry. 26:1044-1047

The microscopic pKa of the pyridine N of the phosphate monoester 2-pyridyl phosphate (MPP) is 2.76, significantly higher than that expected for the leaving group (RO) oxygen of a typical monoester ROPO3=. This favours the prototropic equilibrium cons

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::86130b603eb8f5eac3f176c2add9c610
https://doi.org/10.1002/poc.3165

Zobrazit plný text záznamu

Dephosphorylation Reactions of Mono-, Di-, and Triesters of 2,4-Dinitrophenyl Phosphate with Deferoxamine and Benzohydroxamic Acid

Autor: Michelle Medeiros, Elisa S. Orth, Alex M. Manfredi, Paulina Pavez, Anthony J. Kirby, Faruk Nome, Gustavo Amadeu Micke

Publikováno v: JOURNAL OF ORGANIC CHEMISTRY
Artículos CONICYT
CONICYT Chile
instacron:CONICYT

This work presents a detailed kinetic and mechanistic study of biologically interesting dephosphorylation reactions involving the exceptionally reactive nucleophilic group, hydroxamate. We compare results for hydroxamate groups anchored on the simple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8c8ed62d6423af311cc78c500b36043
https://doi.org/10.1021/jo302374q

Zobrazit plný text záznamu

ChemInform Abstract: Zwitterionic-Surfactant-Stabilized Palladium Nanoparticles as Catalysts in the Hydrogen Transfer Reductive Amination of Benzaldehydes

Autor: Roberta R. Campedelli, Haidi D. Fiedler, Alex M. Manfredi, Emma E. Drinkel, Faruk Nome

Publikováno v: ChemInform. 45

Palladium nanoparticles (NPs) stabilized by a zwitterionic surfactant are revealed here to be good catalysts for the reductive amination of benzaldehydes using formate salts as hydrogen donors in aqueous isopropanol. In terms of environmental impact

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::45c662d44b84a8997ced2b048013f7b0
https://doi.org/10.1002/chin.201436080

Zobrazit plný text záznamu

Zwitterionic-surfactant-stabilized palladium nanoparticles as catalysts in the hydrogen transfer reductive amination of benzaldehydes

Autor: Faruk Nome, Emma E. Drinkel, Roberta R. Campedelli, Haidi D. Fiedler, Alex M. Manfredi

Publikováno v: The Journal of organic chemistry. 79(6)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad64c7088bf81c5358b595a2959e949d
https://pubmed.ncbi.nlm.nih.gov/24552129

Zobrazit plný text záznamu

Reactions of alpha-nucleophiles with a model phosphate diester

Autor: Faruk Nome, Anthony J. Kirby, Alex M. Manfredi, Jacks P. Priebe, Bruno S. Souza, Tiago A. S. Brandão, Michelle Medeiros

Publikováno v: ResearcherID

Substantial rate enhancements are observed for the reactions of α-effect nucleophiles with 2,4dinitrophenyl ethyl phosphate diester 4. The effect is largest (ca. 4500-fold) for the hydroperoxide anion. However, the most reactive α-effect nucleophil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7fa8355622d57aa65d1afcee83ec89f
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000265191400005&KeyUID=WOS:000265191400005

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání