Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Pedro S. M. Oliveira"'
Autor:
Luciano M. Lião, Lorrane Santos Vilela, Pedro S. M. Oliveira, Francisco Fernandes Gambarra Neto, Carlos Frederico de Souza Castro, Eduardo Vieira Silveira
Publikováno v:
Industrial Crops and Products. 97:545-551
This paper describes the physicochemical and chromatographic characterization of crambe oil and the process of its methyl transesterification via alkaline catalysis using response surface methodology (RSM). The reaction conditions developed by applyi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4205570c9c8e35f31c15c91be6e744e7
https://doi.org/10.1016/j.indcrop.2016.12.033
https://doi.org/10.1016/j.indcrop.2016.12.033
Autor:
José R. Mora, Anthony J. Kirby, Nicholas H. Williams, Pedro S. M. Oliveira, Michelle Medeiros, Faruk Nome, Almahdi Amer
Publikováno v:
The Journal of Organic Chemistry. 78:1343-1353
Notwithstanding its half-life of 70 years at 25 °C, the spontaneous hydrolysis of the anion of di-2-pyridyl phosphate (DPP) is thousands of times faster (ca. 3000 at 100 °C, over 10000-fold at 25 °C) than expected for a diester with leaving groups
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3bc4c7e45e782902c89e7dcacde337a8
https://doi.org/10.1021/jo302498g
https://doi.org/10.1021/jo302498g
Autor:
Faruk Nome, Boniek G. Vaz, Pedro S. M. Oliveira, Anthony J. Kirby, Eduardo H. Wanderlind, Michelle Medeiros, Elisa S. Orth, Marcos N. Eberlin
Publikováno v:
The Journal of organic chemistry. 76(19)
The phosphorylation of imidazole by two activated phosphate diesters and a triester gives phosphorylimidazole derivatives that are stable enough in aqueous solution to be observed and identified by ESI-MS/MS and NMR. Half-lives ranging from hours to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88218a055184c69266a2745bdc32c4c6
https://pubmed.ncbi.nlm.nih.gov/21861472
https://pubmed.ncbi.nlm.nih.gov/21861472
Autor:
Anthony J. Kirby, Eduardo H. Wanderlind, Faruk Nome, Michelle Medeiros, Elisa S. Orth, Pedro S. M. Oliveira, Tiago A. S. Brandão, Nicholas H. Williams, Almahdi Amer
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 17(52)
The high rate of spontaneous hydrolysis of tris-2-pyridyl phosphate (TPP) is explained by the activating effects of the non-leaving ("spectator") groups on P-OAr cleavage, and not by intramolecular catalysis. Previous work on phosphate-transfer react
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81aff07197ffdab7e502a9d1d0e1a79d
https://pubmed.ncbi.nlm.nih.gov/22106028
https://pubmed.ncbi.nlm.nih.gov/22106028
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 15(34)
We have identified the first highly efficient intramolecular general base catalysis (IGBC) of a hydrolysis reaction, in a system where two general bases are available to assist the attack of the same nucleophilic water molecule. The suggested mechani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4adbc6d375eb775285ebd6c803bea9f9
https://pubmed.ncbi.nlm.nih.gov/19621399
https://pubmed.ncbi.nlm.nih.gov/19621399