Síntesis de zeolitas tipo na-chabazita, na-p y sus homólogos intercambiados. evaluación de su actividad catalítica en la obtención de tetrahidroquinolinas vía imino diels-alder
Las zeolitas Na-P y Na-CHA fueron sintetizadas y sometidas a intercambio iónico con los metales In, Al, Ca y Cu obteniendo porcentajes de intercambio de 78,89 %Ca; 96,96 %Cu; 68,93 %In, para la zeolita CHA y 89,52 %Ca; 48,11 %Cu y 3,49 %In para la Zeolita-P. El tratamiento con aluminio produce pérdi...
- Autores:
-
Lopez Jaimes, Jefersson Andres
- Tipo de recurso:
- http://purl.org/coar/version/c_b1a7d7d4d402bcce
- Fecha de publicación:
- 2016
- Institución:
- Universidad Industrial de Santander
- Repositorio:
- Repositorio UIS
- Idioma:
- spa
- OAI Identifier:
- oai:noesis.uis.edu.co:20.500.14071/34975
- Palabra clave:
- Post-Consumo
Síntesis
Intercambio
Soporte
Catálisis.
The Na-P and Na-CHA zeolites were synthesized and subjected to ion exchange with In
Al
Ca and Cu metals obtaining percentages of exchange: 78.89 %Ca
96.96 %Cu
68.93 %In
for the CHA zeolite
and 89.52 %Ca
48.11 %Cu and 3.49 %In for Zeolite-P. The aluminum treatment leads in loss of crystallinity of zeolites. The Al% exchange was not determinate because it cannot discriminate the included aluminium exchange in the structure. Additionally
catalysts of Na-P and Na-CHA zeolites supported with HCl / NH4Cl by in situ reaction of EtOH and NH4Cl were synthesized. These solids were used as catalysts in the 2-methyl-1
2
3
4-tetrahidroquinolinas synthesis. The yields of reactions up to 34.9% for 2-methyl-4-(2-oxopyrrolidin-1-yl)-1
2
3
4-tetrahydroquinoline (product 1) and 61.4% for 1-(1-(p-toliamino)ethyl)pyrrolidin-2-one (product 2). The products were characterized by spectroscopic methods (IR
NMR) and the product 2 was characterized by X-ray single crystal diffraction. This material crystalized in a monoclinic system with space group P21/c and cell parameters a=11
589(1)
b=9
4056(7)
c=12
6135(8)
=117
061(6)
packing in helical chains growing along the b axis
forming a pattern of oscillating ribbons extending parallel to the helical chains. Also
it forms linear chains that grow along a and c axis
- Rights
- License
- Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)