Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Oleksandra S. Trofymchuk"'
Turning waste into resources. Efficient synthesis of biopolyurethanes from used cooking oils and CO2
Autor:
Francisca Werlinger, María P. Caballero, Oleksandra S. Trofymchuk, Mario E. Flores, Ignacio Moreno-Villoslada, Felipe de la Cruz-Martínez, José Antonio Castro-Osma, Juan Tejeda, Javier Martínez, Agustín Lara-Sánchez
Publikováno v:
Journal of CO2 Utilization, Vol 79, Iss , Pp 102659- (2024)
The coupling reaction of carbon dioxide and highly-substituted epoxides derived from renewable resources such as fatty acids and waste vegetable oils (cooking oils derived from olive and sunflower) leads to the synthesis of new bio-derived cyclic car
Externí odkaz:
https://doaj.org/article/afc75011f1ff495891988a0323fbceb6
Autor:
Oleksandra S. Trofymchuk, Svetlana V. Pavlova, Vladimir Bon, Alexander N. Boyko, Vasily Pekhnyo
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 5, Pp o1058-o1058 (2010)
In the title compound, C2H5N3O3, the hydroxamic group adopts an anti orientation with respect to the hydrazide group. In the crystal, molecules are connected by N—H...O and O—H...N hydrogen bonds into zigzag chains along the c axis.
Externí odkaz:
https://doaj.org/article/b3017c096f754f67bc21c5d6ecb9d2bb
Publikováno v:
Organometallics. 41:1158-1166
Autor:
Leonardo S. Santos, Oleksandra S. Trofymchuk, Diego Cortés-Arriagada, Constantin G. Daniliuc, Daniela E. Ortega, Clecio Fernando Klitzke, Rene S. Rojas, Alfredo Pereira
Publikováno v:
Catalysis Science & Technology. 11:7475-7485
Herein, we report a comparative study of ethylene activation and 1-hexene isomerization carried out with isomeric neutral and cationic methallyl nickel complexes L1Ni(η3-C3H5) and [L1Ni(η3-C3H5)][B(ArF)4] in the presence of borane co-catalysts. To
Publikováno v:
Nature Biotechnology
Detection of SARS-CoV-2 using RT-PCR and other advanced methods can achieve high accuracy. However, their application is limited in countries that lack sufficient resources to handle large-scale testing during the COVID-19 pandemic. Here, we describe
Autor:
Leonardo S. Santos, Constantin G. Daniliuc, Rene S. Rojas, Oleksandra S. Trofymchuk, Fernando Carrillo-Hermosilla, Ángela Mesías-Salazar, Antonio Antiñolo, Fabiane M. Nachtigall
Publikováno v:
Journal of Catalysis. 382:150-154
A synthetically useful approach of catalytic intramolecular cyclization and oxidation of 2′,2′-(1,4-phenylene)bis(1,3-dialkyl)guanidines (Alkyl = isopropyl 1 or cyclohexyl 2) catalyzed by copper acetate in acetonitrile under air was studied by on
Autor:
Fabiane M. Nachtigall, Oleksandra S. Trofymchuk, Alejandro Toro-Labbé, Daniela E. Ortega, Rene S. Rojas, Leonardo S. Santos, Diego Cortés-Arriagada
Publikováno v:
Polymer Chemistry. 11:6640-6649
This paper provides a guide to identify and understand the mechanistic origin of the catalytic activity and selectivity in the production of linear and branched polyethylene through a nickel hydride catalyst. Nickel active species were experimentally
Autor:
Zhi-Peng Zheng, Daniel J. Mindiola, Elena J. Varela, Oleksandra S. Trofymchuk, Takashi Kurogi, Patrick J. Walsh
Publikováno v:
Advanced Synthesis & Catalysis. 362:659-666
Autor:
Eyra Ortiz-Pérez, Gildardo Rivera, Cristian O. Salas, Lucio Hernandez-Soberanis, Karina Vázquez, Juanita D. Perales-Flores, Juan J. Zarate-Ramos, Oleksandra S. Trofymchuk
Publikováno v:
Current topics in medicinal chemistry. 21(22)
Background: Naphthoquinones are a class of aromatic compounds relevant for their chemical characteristics, structural properties, and biological activity. These compounds are found in nature with a wide range of effects, highlighting their antibacter
Autor:
Alan R. Cabrera, Javier Martínez, David Moreno da Costa, Rene S. Rojas, Constantin G. Daniliuc, Luis Borja, Celso Quintero, Pablo Jaque, Oleksandra S. Trofymchuk, Camilo Verdugo
Publikováno v:
New Journal of Chemistry. 43:12059-12068
New 4-amino-3-iminoquinoline derivative ligands (L1–4) were synthesized through an intramolecular exo-dig cyclization of anionic β-diketiminates, containing an N-benzonitrile moiety. The effect of the alkali-metal in this reaction was investigated