PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE

Chiral organic-inorganic hybrids have been prepared from 1,3,5,7-tetramethylcyclotetrasiloxane (TMCTS), divynilbenzene (DVB) and a natural alkaloid (-)-Cinchonidine (CD). Different CD quantities were inserted into the solid by hydrosilylation reaction using Pt0(2) as catalyst. The obtained solids we...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	REYES,PATRICIO, CAMPOS,CRISTIAN, GARCÍA FIERRO,JOSÉ LUIS
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2007
Materias:	Ru Ethyl pyruvate Cinchonidine Hybrid catalysts Enantioselectivity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000300013
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-97072007000300013
record_format	dspace
spelling	oai:scielo:S0717-970720070003000132007-11-29PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATEREYES,PATRICIOCAMPOS,CRISTIANGARCÍA FIERRO,JOSÉ LUIS Ru Ethyl pyruvate Cinchonidine Hybrid catalysts Enantioselectivity Chiral organic-inorganic hybrids have been prepared from 1,3,5,7-tetramethylcyclotetrasiloxane (TMCTS), divynilbenzene (DVB) and a natural alkaloid (-)-Cinchonidine (CD). Different CD quantities were inserted into the solid by hydrosilylation reaction using Pt0(2) as catalyst. The obtained solids were used as supports of Ru which was deposited on the carrier from colloidal dispersion of the metal. Catalysts and supports were characterised by using Fourier Transformed Infrared Spectroscopy, X- Ray Diffraction, Electron Transmission Microscopy, N2 adsorption-desorption isotherms and X- Ray photoelectron spectroscopy. The catalysts were essayed in the hydrogenation of ethyl pyruvate at 298 K and 40 bar of hydrogen in a Parr-type reactor. The obtained results indicate that the catalytic activity of the hybrid catalysts is rather low and in those catalysts having CD in their structure, is possible to induce chirality towards the enantiomer R-lactateinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.52 n.3 20072007-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000300013en10.4067/S0717-97072007000300013
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Ru Ethyl pyruvate Cinchonidine Hybrid catalysts Enantioselectivity
spellingShingle	Ru Ethyl pyruvate Cinchonidine Hybrid catalysts Enantioselectivity REYES,PATRICIO CAMPOS,CRISTIAN GARCÍA FIERRO,JOSÉ LUIS PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE
description	Chiral organic-inorganic hybrids have been prepared from 1,3,5,7-tetramethylcyclotetrasiloxane (TMCTS), divynilbenzene (DVB) and a natural alkaloid (-)-Cinchonidine (CD). Different CD quantities were inserted into the solid by hydrosilylation reaction using Pt0(2) as catalyst. The obtained solids were used as supports of Ru which was deposited on the carrier from colloidal dispersion of the metal. Catalysts and supports were characterised by using Fourier Transformed Infrared Spectroscopy, X- Ray Diffraction, Electron Transmission Microscopy, N2 adsorption-desorption isotherms and X- Ray photoelectron spectroscopy. The catalysts were essayed in the hydrogenation of ethyl pyruvate at 298 K and 40 bar of hydrogen in a Parr-type reactor. The obtained results indicate that the catalytic activity of the hybrid catalysts is rather low and in those catalysts having CD in their structure, is possible to induce chirality towards the enantiomer R-lactate
author	REYES,PATRICIO CAMPOS,CRISTIAN GARCÍA FIERRO,JOSÉ LUIS
author_facet	REYES,PATRICIO CAMPOS,CRISTIAN GARCÍA FIERRO,JOSÉ LUIS
author_sort	REYES,PATRICIO
title	PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE
title_short	PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE
title_full	PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE
title_fullStr	PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE
title_full_unstemmed	PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE
title_sort	preparation of chiral organic-inorganic solid hybrids: use as support of catalysts in the enantioselective hydrogenation of ethyl pyruvate
publisher	Sociedad Chilena de Química
publishDate	2007
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072007000300013
work_keys_str_mv	AT reyespatricio preparationofchiralorganicinorganicsolidhybridsuseassupportofcatalystsintheenantioselectivehydrogenationofethylpyruvate AT camposcristian preparationofchiralorganicinorganicsolidhybridsuseassupportofcatalystsintheenantioselectivehydrogenationofethylpyruvate AT garciafierrojoseluis preparationofchiralorganicinorganicsolidhybridsuseassupportofcatalystsintheenantioselectivehydrogenationofethylpyruvate
_version_	1718445376344686592

PREPARATION OF CHIRAL ORGANIC-INORGANIC SOLID HYBRIDS: USE AS SUPPORT OF CATALYSTS IN THE ENANTIOSELECTIVE HYDROGENATION OF ETHYL PYRUVATE

Ejemplares similares