0000000000088320
AUTHOR
Elena Zaballos Garcia
Creación de página Web para promover aprendizaje colaborativo en alumnos de máster
[EN] A Web page has been designed by master students in order to engage them in collaborative and cooperative learning, thus improving their learning and comprehension of relevant concepts and topics. To that purpose, topics included in the subject Advanced Techniques in Chemistry which is part of the Master in Sustainable Chemistry of the University of Valencia have been included in the Webpage with the help of WIX software. This approach makes intensive use of the Web as a key technological resource for learning, where the information seen in the subject is summarized and given in an applicative and pertinent context that is easy to understand for all public interested in the topics discu…
Oxidation of aminodiols mediated by homogeneous and heterogeneous TEMPO
The conversion of amino diols to aminohy- droxy acids by oxidation of the primary hydroxy group mediated by homogeneous and heterogeneous TEMPO (2,2,6,6-tetramethylpiperidine 1-oxyl radi- cal) is reported. The synthesis uses NaOCl as primary oxidant and TEMPO, either dissolved in the homoge- neous phase or entrapped in a sol-gel matrix, as cata- lytic mediator. Homogeneous TEMPO is suitable for the oxidation of aliphatic methylamino diols, while the hybrid organic-inorganic silica sol-gel catalysts are more selective mediators for the oxidation of ben- zylic amino diols like the potent antibiotic chloram- phenicol which, under homogeneous conditions, are unselectively oxidized to benzoic ac…