Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ramón Guzmán-Mejía"'
Autor:
Ramón Guzmán-Mejía, Omar Sánchez-Antonio, Judit A. Aviña-Verduzco, Marco A. García-Revilla, J. Betzabe González-Campos, Eusebio Juaristi, Juan C. Jiménez-Cruz
Publikováno v:
New Journal of Chemistry. 44:13382-13392
A series of aromatic γ-hydroxyketones were prepared by means of Heck coupling reaction of aryl halides and 2,3-dihydrofuran, catalyzed by PdCl2·Gly2 and under microwave irradiation. This synthetic transformation involves the formation of an aryl-di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae000c34bfc9c0b529a597da286c35e0
https://doi.org/10.1039/d0nj02630a
https://doi.org/10.1039/d0nj02630a
Autor:
Ramón Guzmán-Mejía, Pedro Joseph-Nathan, Hugo A. García-Gutiérrez, Luisa U. Román-Marín, Concepción Armenta-Salinas, Juan D. Hernández-Hernández, Carlos M. Cerda-García-Rojas
Publikováno v:
Journal of Natural Products. 82:3410-3420
The tricyclic sesquiterpene (1R,3R,4S,5S,7S,8S,9S,10R,11R)-7,8-diangeloyloxylongipinan-1,9-diol, or rasteviol (7), underwent multiple Wagner-Meerwein molecular rearrangements and several hydride shifts when treated with Et2O-BF3 to generate the six n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8076c6dff524400ac587fdbed38fab4c
https://doi.org/10.1021/acs.jnatprod.9b00784
https://doi.org/10.1021/acs.jnatprod.9b00784
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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This paper reports an experimental determination of the gas-phase acidities and basicities of N-benzylalanines, in both their α and β forms, by means of the extended kinetic method (EKM). The experimental gas-phase acidity of β-alanine was also de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a64e93de8f431e4f77bf05e2719c97d
https://doi.org/10.1021/acs.jpca.7b10358
https://doi.org/10.1021/acs.jpca.7b10358
Publikováno v:
Nature Protocols. 2:2759-2766
The use of microwave (MW) irradiation for the condensation reaction between acetophenone and alpha-phenylethylamine to prepare (R,R)-bis[alpha-phenylethyl]amine results in significantly reduced reaction times relative to the use of conventional heati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::106725c15f0bee07bfb99b57faafe5b4
https://doi.org/10.1038/nprot.2007.375
https://doi.org/10.1038/nprot.2007.375
Autor:
Manuel Temprado, María Victoria Roux, Ramón Guzmán-Mejía, Eusebio Juaristi, Pilar Jiménez, James S. Chickos
Publikováno v:
Thermochimica Acta. 406:9-16
A thermophysical study of thiane sulfone, 1; 1,3-dithiane sulfone, 2; and 1,3-dithiane sulfoxide, 3 in the temperature intervals between T = 268 K and their respective melting temperatures has been carried out. The experimental values for the mole fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d45db369a7bf226d58f0b1b0e092e75
https://doi.org/10.1016/s0040-6031(03)00220-x
https://doi.org/10.1016/s0040-6031(03)00220-x
Autor:
Juan Z. Dávalos, Ramón Guzmán-Mejía, María Victoria Roux, Eusebio Juaristi, Manuel Temprado, Rafael Notario, Pilar Jiménez
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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A rotating-bomb combustion calorimeter specifically designed for the study of sulfur-containing compounds [J. Chem. Thermodyn. 1999, 31, 635] has been used for the determination of the enthalpy of formation of thiane sulfone, 4, ΔfH°m(g) = −394.8
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2bae9813dbe81a82822a755e62f035ba
https://doi.org/10.1021/jo020496y
https://doi.org/10.1021/jo020496y
Autor:
Marta Segura, James S. Chickos, Eusebio Juaristi, Rafael Notario, Ramón Guzmán-Mejía, María Victoria Roux
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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The present study reports a differential scanning calorimetry (DSC) study of the amino acids sarcosine [CAS Registry No. 107-97-1], α-alanine (dl) [CAS Registry No. 302-72-7], β-alanine [CAS Registry No. 107-95-9], N-benzyl-α-alanine (dl) [CAS Reg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c1981f5603849c2c22ae505bdfef1fc
http://hdl.handle.net/10261/271795
http://hdl.handle.net/10261/271795
Autor:
Ana Filipa L.O.M. Santos, Eusebio Juaristi, Maria D.M.C. Ribeiro da Silva, Rafael Notario, María Victoria Roux, Concepción Foces-Foces, Ramón Guzmán-Mejía, Manuel A.V. Ribeiro da Silva
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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This paper reports an experimental and theoretical study of the gas phase standard (p° = 0.1 MPa) molar enthalpies of formation, at T = 298.15 K, of α-alanine (DL) and β-alanine. The standard (p° = 0.1 MPa) molar enthalpies of formation of crysta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b17a0fafad0727281dd9f78b9974756c
http://hdl.handle.net/10261/271084
http://hdl.handle.net/10261/271084
Autor:
Manuel Temprado, Eusebio Juaristi, Rafael Notario, María Victoria Roux, Pilar Jiménez, Ramón Guzmán-Mejía
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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The enthalpies of formation in the condensed and gas states, ΔfH°m(cd) and ΔfH°m(g), of 1,3- and 1,4-oxathiane sulfones were derived from their respective enthalpies of combustion in oxygen, measured by a rotating bomb calorimeter and the variati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83e440311f6490d3067a703d047ee7c3
https://pubmed.ncbi.nlm.nih.gov/17288369
https://pubmed.ncbi.nlm.nih.gov/17288369
Autor:
Ramón Guzmán-Mejía, Manuel Temprado, Pilar Jiménez, María Victoria Roux, Eusebio Juaristi, Rafael Notario
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
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This work reports the enthalpies of formation in the condensed and gas state of 1,4-dithiacyclohexane 1,1-dioxide (1,4-dithiane sulfone, 5), derived from the enthalpy of combustion in oxygen, measured by a rotating bomb calorimeter and the variation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b9386dcce214675001c8efdc55599ef
https://pubmed.ncbi.nlm.nih.gov/16555808
https://pubmed.ncbi.nlm.nih.gov/16555808