Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Diana Vargas-Oviedo"'
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 151:575-588
A convenient synthesis of N-phenacylbenzimidazoles in high yields (90–95%) by the N-alkylation reaction of 1H-benzimidazole with phenacyl bromides is provided. The carbonyl group reduction in the products offered the respective N-(2-aryl-2-hydroxye
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ebb83cc934b7e771350c706eb4a1be90
https://doi.org/10.1007/s00706-020-02575-9
https://doi.org/10.1007/s00706-020-02575-9
Publikováno v:
Journal of Chemical Education
The first case of coronavirus disease 2019 in Colombia was detected on March 6, 2020. Subsequently, schools, colleges, and universities were closed on March 26, which forced a massive migration to virtual education and impacted laboratory-based teach
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ece0db3abb6256efff2009eba1e1dbd2
http://europepmc.org/articles/PMC8577362
http://europepmc.org/articles/PMC8577362
Publikováno v:
Repositorio U. El Bosque
Universidad El Bosque
instacron:Universidad El Bosque
Universidad El Bosque
instacron:Universidad El Bosque
In this study, a family of N -phenacylbenzimidazoles 1–3 synthesized in high yields (90–93%) by the N - phenacylation reaction of NH -benzimidazole ( 4 ) under ultrasonic conditions was recrystallized from the mixture EtOH:AcOEt (1:1 V/V). These
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d15b16a713c7711a3c1eeba7d6b95b60
Autor:
Tatiana Sarmiento Monsalve, Jesús Jiménez Montoya, Julieth Vanegas García, Diana Vargas Oviedo
Publikováno v:
Tecné, Episteme y Didaxis, Vol 0, Iss 0 (2009)
A través de la historia, las enfermedades han sido tratadas por compuestos naturales, dentro de los que están los Ácidos Húmicos (AH), biopolímeros que se encuentran en plantas, aguas estancadas y carbones de bajo rango. Estos sustratos poseen
Externí odkaz:
https://doaj.org/article/2b57f78b409c4119bd636e5119d8ae5e
A quick access toward a 1,2-dialkyl-5-trifluoromethylbenzimidazoles library by a three-step synthesis sequence starting from 1-chloro-2-nitro-4-(trifluoromethyl)benzene is described. The synthesis proceed via o-phenylendiamines eficiently isolated, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e8e8dd45927b5f480e6d2fea65db5b63
Wiley Online Library
Wiley Online Library
Autor:
Gregorio Asensio, María Elena González-Núñez, Rossella Mello, Diana Vargas-Oviedo, Rafael Acerete, Jeymy T. Sarmiento-Monsalve
Publikováno v:
Organicbiomolecular chemistry. 12(20)
The rate constants for the epoxidation of cis-2-heptene with [2-percarboxyethyl]-functionalized silica (1a) and meta-chloroperbenzoic acid (mCPBA) (1b) in different solvents have been determined at temperatures in the −10 to 40 °C range. The heter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c62203618950afcfa730ff0da38fdbf
https://pubmed.ncbi.nlm.nih.gov/24728375
https://pubmed.ncbi.nlm.nih.gov/24728375