H-ZSM-5-catalyzed shape-selective acetalization of aldehydes
- Alchemie Research Centre, Maharashtra (India)
The paper describes acetalization of aliphatic and aromatic aldehydes with methanol catalyzed by H-ZSM-5 at room temperature. The reactions are characterized by the following features: (1) The reaction rates are faster with aromatic aldehydes relative to the aliphatic aldehydes. (2) The reaction exhibits shape selectivity for aliphatic aldehydes. The phenomenon of shape selectivity with the aliphatic aldehydes studied has been corroborated by carrying out kinetics of adsorption of the aldehydes and the product acetals. The activity and selectivity pattern of H-ZSM-5 has been compared with other acid catalysts. The utility of the shape selective acetalization of H-ZSM-5 in selectively reducing one aldehyde in presence of the other with sodium borohydride is also pointed out.
- OSTI ID:
- 5614564
- Journal Information:
- Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 128:1; ISSN 0021-9517; ISSN JCTLA
- Country of Publication:
- United States
- Language:
- English
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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ACETALS
ADSORPTION
ALCOHOLS
ALDEHYDES
ALKALI METAL COMPOUNDS
AMBIENT TEMPERATURE
BOROHYDRIDES
BORON COMPOUNDS
CATALYTIC EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ETHERS
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
KINETICS
MATERIALS
METHANOL
MINERALS
ORGANIC COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
REACTION KINETICS
SODIUM COMPOUNDS
SORPTION
SYNTHESIS
ZEOLITES