Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Elson S, Alvarenga"'
Publikováno v:
Química Nova, Vol 45, Iss 9, Pp 1114-1132 (2022)
Bicyclo[2.2.1]hepta-2,5-diene or norbornadiene (NBD) is a bicyclic hydrocarbon molecule used in many fields of chemistry since its first synthesis in 1950. NBD is the precursor of Aldrin, an agrochemical that was commonly used as an insecticide until
Externí odkaz:
https://doaj.org/article/27e50aaa137e481997ad23de17affa30
Autor:
Javier G. Mantilla Afanador, Sabrina H. C. Araujo, Milena G. Teixeira, Dayane T. Lopes, Cristiane I. Cerceau, Felipe Andreazza, Daiana C. Oliveira, Daniel Bernardi, Wellington S. Moura, Raimundo W. S. Aguiar, Ana C. S. S. Oliveira, Gil R. Santos, Elson S. Alvarenga, Eugenio E. Oliveira
Publikováno v:
Insects, Vol 14, Iss 8, p 697 (2023)
Drosophila suzukii, an invasive insect pest, poses a significant threat to various fruit crops. The use of broad-spectrum insecticides to control this pest can reduce the effectiveness of biological control agents, such as the parasitoid Trichopria a
Externí odkaz:
https://doaj.org/article/831387761c00478aa11b07b8bb0bbc27
Publikováno v:
Molecules, Vol 26, Iss 7, p 1923 (2021)
Cyclic imides belong to a well-known class of organic compounds with various biological activities, promoting a great interest in compounds with this functional group. Due to the structural complexity of some molecules and their spectra, it is necess
Externí odkaz:
https://doaj.org/article/f731082f559c427db05fe89bb4e4a610
Publikováno v:
Magnetic Resonance in Chemistry. 60:139-147
Sesquiterpene lactones are found in plants of Asteraceae family, and endoperoxides are known for their antimalarial activity. Structural elucidation is a relevant aspect; however, it is not uncommon to find incorrect or incomplete structural assignme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a6de900784e63b7d3c132567e50b3d1
https://doi.org/10.1002/mrc.5195
https://doi.org/10.1002/mrc.5195
Autor:
Bryan N. S. Pinto, Elson S. Alvarenga, Anderson R. Santos, Washington F. Oliveira, Vanderlúcia F. de Paula, Márcio N. Oliveira, João M. B. Junior, Andrea N. de L. Batista
Publikováno v:
Asian Journal of Organic Chemistry. 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f163d42120ef3ef68507553245c49fb3
https://doi.org/10.1002/ajoc.202200182
https://doi.org/10.1002/ajoc.202200182
Publikováno v:
Magnetic Resonance in Chemistry. 58:559-565
Phtalides are secondary metabolites found in several fungi with a wide range of biological activities. A novel phthalide analog was synthesized by Diels-Alder reaction between cyclopentadiene and 3,4-dichlorofuran-2(5H)-one. Quantum mechanical calcul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f4edc86fc380c8ecf6b8729c6748401
https://doi.org/10.1002/mrc.4976
https://doi.org/10.1002/mrc.4976
Autor:
Elson S. Alvarenga, Luiz C. A. Barbosa, William A. Saliba, Francisco F. P. Arantes, Antônio J. Demuner, Antônio A. Silva
Publikováno v:
Química Nova, Vol 32, Iss 2, Pp 401-406 (2009)
Mixtures of α-Santonin and various solvents were irradiated by either high or low pressure mercury lamps. The photochemical reactions afforded lumisantonin (11) (76% in acetonitrile), (3S,3aS,9bS)-3,6,6-trimethyl-3,3a,4,5-tetrahydronafto[1,2-b]furan
Externí odkaz:
https://doaj.org/article/48839e0ce81947a798c7d1309c1270f2
Autor:
Luciano de Moura Guimarães, Elson S. Alvarenga, Sandra Milena Bonilla Castañeda, Antonio J. Demuner
Publikováno v:
Structural Chemistry. 31:599-607
Nematode control is a significant problem in agriculture industry all over the world. The control is often made with the use of toxic chemicals which can bring detrimental effect to humans, animals, and the environment. Therefore, developing an alter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5eeefc7f2744f5e1dae6ce5d8df01d9
https://doi.org/10.1007/s11224-019-01431-9
https://doi.org/10.1007/s11224-019-01431-9
Autor:
Simone A. Silva, Vânia M.T. Carneiro, Elson S. Alvarenga, Gustavo Costa Bressan, Raoni Pais Siqueira
Publikováno v:
Journal of Molecular Structure. 1191:6-16
Photosantonic acid (2), produced by photochemical reaction of α-santonin (1), was converted into eighteen alkyl and aryl amides. These compounds were characterized by the spectrometric methods and evaluated for their cytotoxic activity against a hum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0855009f68aa91f5d1a2fef9427945ec
https://doi.org/10.1016/j.molstruc.2019.04.021
https://doi.org/10.1016/j.molstruc.2019.04.021
Autor:
Luiz C. A. Barbosa, Cristiane I. Cerceau, Elson S. Alvarenga, Célia R. A. Maltha, Fyaz M.D. Ismail
Publikováno v:
Phytochemical Analysis. 31:88-97
Introduction Essential oils of Cymbopogon nardus and C. winterianus have fungicidal, bactericidal, and insect repellent activities. In addition, they are components of fragrances, cosmetics, and household products. The growing demand for essential oi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::895d80989d662b1cb3479f8e6baba487
https://doi.org/10.1002/pca.2869
https://doi.org/10.1002/pca.2869