Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Ramiro F. Quijano‐Quiñones"'
Publikováno v:
Molecules, Vol 17, Iss 4, Pp 4661-4671 (2012)
The energy change on each Occupied Molecular Orbital as a function of rotation about the C-C bond in ethane was studied using the B3LYP, mPWB95 functional and MP2 methods with different basis sets. Also, the effect of the ZPE on rotational barrier wa
Externí odkaz:
https://doaj.org/article/e00361fb6e1c4b66ad3d4c35cd3e5456
Autor:
Ramiro F. Quijano-Quiñones, Carolina S. Castro-Segura, Gonzalo J. Mena-Rejón, Mariana Quesadas-Rojas, David Cáceres-Castillo
Publikováno v:
Molecules, Vol 23, Iss 10, p 2505 (2018)
Mechanistic theoretical studies about the feasibility of the traditional proposed mechanism of formation for icetexane diterpene dimer grandione were assessed using density functional method at the M06-2X/6-31G(d,p) level of theory. Bulk water solven
Externí odkaz:
https://doaj.org/article/99b6ebe37beb45e98f87a64e5d0656bb
Autor:
Mariana Quesadas-Rojas, Gonzalo J. Mena-Rejón, David Cáceres-Castillo, Gabriel Cuevas, Ramiro F. Quijano-Quiñones
Publikováno v:
Molecules, Vol 21, Iss 11, p 1551 (2016)
The biogenetic origin of triterpene dimers from the Celastraceae family has been proposed as assisted hetero-Diels-Alder reaction (HDA). In this work, computational calculation of HDA between natural quinonemethides (tingenone and isopristimerol) and
Externí odkaz:
https://doaj.org/article/9f4c6fd5c3c3441dbcceab6cb3864daa
Autor:
Ramiro F. Quijano-Quiñones, Rubén A. Toscano, Beatriz Quiroz-García, Gabriel Cuevas, Tannya R. Ibarra-Rivera, Juan F. Tamez-Fernández, Diego Martínez-Otero, José Enrique Barquera-Lozada, Fabián Cuétara-Guadarrama, Fatima M. Soto-Suárez, Karla Ramírez-Gualito, Yolanda D. Estrada-Chavarría, Verónica M. Rivas-Galindo, Víctor Duarte-Alaniz
Publikováno v:
The Journal of Organic Chemistry. 86:9540-9551
The cyclopropane ring-opening reaction of riolozatrione, a natural product obtained from Jatropha dioica, afforded a 2,2-disubstituted 1,3-cyclohexandione displaying an alkyl methyl ether group at position 5. The conformational analysis of this produ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e98de5027dab2db26194597eefcfe2ff
https://doi.org/10.1021/acs.joc.1c00847
https://doi.org/10.1021/acs.joc.1c00847
Publikováno v:
ChemistrySelect. 7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca9b7413c4bdc3c59e8512b218aa792f
https://doi.org/10.1002/slct.202201024
https://doi.org/10.1002/slct.202201024
Autor:
Mariana Quesadas-Rojas, Gonzalo J. Mena-Rejón, Carolina S. Castro-Segura, David Cáceres-Castillo, Jareth Guadarrama-Moreno, Ramiro F. Quijano-Quiñones
Publikováno v:
RSC Advances. 11:7459-7465
Acrolein dimerization is a intriguing case since the reaction does not occur to form the electronically preferred regioisomeric adduct. Various explanations have been suggested to rationalize this experimental regioselectivity, however, none of these
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de64ec3147370293f5d01de1eac1c9b9
https://doi.org/10.1039/d0ra10084f
https://doi.org/10.1039/d0ra10084f
Autor:
Carolina S. Castro-Segura, Mariana Quesadas-Rojas, Gonzalo J. Mena-Rejón, David Cáceres-Castillo, Ramiro F. Quijano-Quiñones
Publikováno v:
New Journal of Chemistry. 45:22417-22423
The reaction for the formation of the xuxuarine Aα triterpene dimer in an aqueous medium was studied using the ONIOM/CPCM-X scheme at the ONIOM(M06-2X/6-31G(d,p):PM6) level of theory, along with the inclusion of one and two explicit water molecules.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c941bf08f19beccd78fb5c838a90de3
https://doi.org/10.1039/d1nj04221a
https://doi.org/10.1039/d1nj04221a
Autor:
David Cáceres-Castillo, Gumersindo Mirón-López, María C. García-López, Rodrigo Chan-Navarro, Ramiro F. Quijano-Quiñones, Flor M. Briceño-Vargas, Roger Cauich-Kumul, Hugo Morales-Rojas, Angel D. Herrera-España
Publikováno v:
Journal of Molecular Structure. 1271:134048
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::333b8be6a7d6f4b39f166b19df00b3c1
https://doi.org/10.1016/j.molstruc.2022.134048
https://doi.org/10.1016/j.molstruc.2022.134048
Autor:
Manlio Graniel-Sabido, Rubén M. Carballo, Gumersindo Mirón-López, Rosa Moo-Puc, David Cáceres-Castillo, Gonzalo J. Mena-Rejón, Ramiro F. Quijano-Quiñones
Publikováno v:
Medicinal Chemistry Research. 29:431-441
A series of 15 chalcones-bearing substituents at positions 2, 4, and 5 of rings A and B were synthesized using microwave-assisted Claissen–Smichdt condensation and evaluated for their activity against Giardia lamblia and Green monkey kidney cells.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1368cbc06b3fe9195d4b9d6cd358cc13
https://doi.org/10.1007/s00044-019-02492-5
https://doi.org/10.1007/s00044-019-02492-5
Autor:
Juan F, Tamez-Fernández, Fátima M, Soto-Suárez, Yolanda D, Estrada-Chavarría, Ramiro F, Quijano-Quiñones, Rubén A, Toscano, Fabián, Cuétara-Guadarrama, Víctor, Duarte-Alaniz, Tannya R, Ibarra-Rivera, Beatriz, Quiroz-García, Diego, Martínez-Otero, Karla, Ramírez-Gualito, José Enrique, Barquera-Lozada, Verónica M, Rivas-Galindo, Gabriel, Cuevas
Publikováno v:
The Journal of organic chemistry. 86(14)
The cyclopropane ring-opening reaction of riolozatrione, a natural product obtained from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::da8b5fc00b0971aec935f05c92ed68d8
https://pubmed.ncbi.nlm.nih.gov/34210132
https://pubmed.ncbi.nlm.nih.gov/34210132