Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Carolina Silva-Cuevas"'
Autor:
J. Armando Lujan-Montelongo, Alicia E. Cruz-Jiménez, Jeferson B. Mateus-Ruiz, Carolina Silva-Cuevas
Publikováno v:
Synlett. 33:977-982
Ethyl cyanoformate and methyl cyanoformate (Mander’s reagent) are both routinely used to perform C-selective ketone alkoxycarbonylations. Interestingly, both reagents were found to yield oxoalkenenitriles through an unprecedented deoxycyanation of
Autor:
Carolina Silva-Cuevas, Humberto L. Mendoza-Figueroa, Luis A. Polindara-García, Jesus Armando Lujan-Montelongo, Saray Oliveros-Cruz, Anahí C. Sánchez-Chávez, Mario D. Torres-Cardona
Publikováno v:
Tetrahedron Letters. 59:4096-4101
Lutein, a xanthophyll carotenoid abundant in marigold flowers (Tagetes spp.), is found in the form of ester derivatives of fatty acids. Herein we present an enzymatic approach for the regioselective synthesis of 3-O-acyl monoester lutein derivatives
Publikováno v:
RSC Advances. 8:24654-24659
A facile and highly efficient method for the bromomethylation of thiols, using paraformaldehyde and HBr/AcOH, has been developed, which advantageously minimizes the generation of highly toxic byproducts. The preparation of 22 structurally diverse α-
Autor:
J. Armando Lujan-Montelongo, Carolina Silva-Cuevas, Luis A. Polindara-García, Carlos Perez-Arrieta
Publikováno v:
Tetrahedron Letters. 58:2244-2247
A rapid and facile method provides a general route to sulfonyl bromides/chlorides by the oxidation of thiols using NXS – ROH (X = Br,Cl, R = i Pr) as an oxyhalogenation reagent. Control experiments suggest that the alcohol component is the source o
Autor:
Ehecatl Paleo, Carlos Perez-Arrieta, Adabelia Tapia-Pineda, J. Armando Lujan-Montelongo, Carolina Silva-Cuevas
Publikováno v:
Journal of Chemical Education. 93:1470-1474
A simple, microscale experiment was developed with the aim of demonstrating the concept of umpolung in synthetic organic chemistry. Starting from a common alkyl sulfinate, students perform a polarity inversion by performing a Grignard-based sulfoxide