Zobrazeno 1 - 10
of 497
pro vyhledávání: '"Matheus P. Freitas"'
Autor:
Eduardo L. Caputo, Danylo J. S. Costa, Igor M. Mariano, Leticia G. Lobo, Ana L. A. Ribeiro, Julia C. Gonçalves, Matheus P. Freitas, Priccila Zuchinali, Jeferson S. Jeronimo, Paula A. B. Ribeiro, Felipe F. Reichert
Publikováno v:
BMC Sports Science, Medicine and Rehabilitation, Vol 16, Iss 1, Pp 1-9 (2024)
Abstract Background This review is an update of the previous study aiming to identify the available evidence related to physical activity (PA) in the context of the coronavirus disease (COVID-19) pandemic. Methods We searched 6 databases (PubMed, Emb
Externí odkaz:
https://doaj.org/article/dd394afc30e94fadb8847fe83d0d9fef
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1572-1579 (2024)
Selective fluorination of the pyrrolidine ring in proline motifs has been found to induce significant conformational changes that impact the structure and biological roles of modified peptides and proteins. Vicinal difluorination of fluoroproline, fo
Externí odkaz:
https://doaj.org/article/85d46fa27108485b92e9c148efd1e5ed
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 16, Iss 1, Pp 2469-2476 (2020)
Molecular polarity governs lipophilicity, which in turn determines important agrochemical and environmental properties, such as soil sorption and bioconcentration of organic compounds. Since the C–F bond is the most polar in organic chemistry, the
Externí odkaz:
https://doaj.org/article/e094b509a3a64802874bef5cfe0658dd
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 15, Iss 1, Pp 506-512 (2019)
The active species of the Ishikawa´s reagent [N,N-diethyl-(1,1,2,3,3,3-hexafluoropropyl)amine] is a fluorinating hexafluoropropylamine used to convert alcohols into alkyl fluorides. On the other hand, it is also an example of model compound useful t
Externí odkaz:
https://doaj.org/article/604fed4eb3184b03a5ae68d4952ee853
Publikováno v:
ACS Omega, Vol 3, Iss 8, Pp 10250-10254 (2018)
Externí odkaz:
https://doaj.org/article/ca10d2ba18f7474cbf6964e35796a255
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 13, Iss 1, Pp 1781-1787 (2017)
2-Haloketones are building blocks that combine physical, chemical and biological features of materials and bioactive compounds, while organic fluorine plays a fundamental role in the design of performance organic molecules. Since these features are d
Externí odkaz:
https://doaj.org/article/3302da9577864bdf88f8d5b4018d11b7
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 12, Iss 1, Pp 760-768 (2016)
An intriguing question in 3D-QSAR lies on which conformation(s) to use when generating molecular descriptors (MD) for correlation with bioactivity values. This is not a simple task because the bioactive conformation in molecule data sets is usually u
Externí odkaz:
https://doaj.org/article/9adbf8218bb44e70996ec192c256d032
Autor:
Josué M. Silla, Claudimar J. Duarte, Rodrigo A. Cormanich, Roberto Rittner, Matheus P. Freitas
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 877-882 (2014)
The gauche effect in fluorinated alkylammonium salts is well known and attributed either to an intramolecular hydrogen bond or to an electrostatic attraction between the positively charged nitrogen and the vicinal electronegative fluorine atom. This
Externí odkaz:
https://doaj.org/article/7b4c31e210be40b59880e7e0dfd9b21c
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 9, Iss 1, Pp 1127-1134 (2013)
A 1TSJF,H(O) coupling pathway, dictated by a hydrogen bond, in some 2-fluorobenzoic acids has been observed, while such an interaction does not occur in 2-fluorophenol. Thus, this work reports the conformational analysis of 2-fluorophenylboronic acid
Externí odkaz:
https://doaj.org/article/bb7a9e5854c343d89aa0fc71af449aac
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1227-1232 (2012)
Four diastereoisomers of 2-fluorobicyclo[2.2.1]heptan-7-ols were computationally investigated by using quantum-chemical calculations, and their relative energies were analyzed on the basis of stereoelectronic interactions, particularly the presence o
Externí odkaz:
https://doaj.org/article/daa3b4aaed4548539571ca1156ffee66