info:eu-repo/semantics/article
Multicomponent Click Synthesis of 1,2,3-Triazoles from Epoxides in Water Catalyzed by Copper Nanoparticles on Activated Carbon
Registro en:
Alonso, Francisco; Moglie, Yanina Fernanda; Radivoy, Gabriel Eduardo; Yus, Miguel; Multicomponent Click Synthesis of 1,2,3-Triazoles from Epoxides in Water Catalyzed by Copper Nanoparticles on Activated Carbon; American Chemical Society; Journal of Organic Chemistry; 76; 20; 6-9-2011; 8394-8405
0022-3263
CONICET Digital
CONICET
Autor
Alonso, Francisco
Moglie, Yanina Fernanda
Radivoy, Gabriel Eduardo
Yus, Miguel
Resumen
Copper nanoparticles on activated carbon have been found to effectively catalyze the multicomponent synthesis of β-hydroxy-1,2,3-triazoles from a variety of epoxides and alkynes in water. The catalyst is easy to prepare, reusable at a low copper loading (0.5 mol %), and exhibits higher catalytic activity than some commercially available copper sources. The regio- and stereochemistry of the reaction has been revised and unequivocally established on the basis of X-ray crystallographic analyses. An NMR experiment has been implemented for the rapid and unmistakable determination of the regiochemistry of the process. Some mechanistic aspects of the reaction have been also undertaken which unveil the participation of copper(I) acetylides. Fil: Alonso, Francisco. Universidad de Alicante; España Fil: Moglie, Yanina Fernanda. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Radivoy, Gabriel Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina Fil: Yus, Miguel. Universidad de Alicante; España