Sulfated zirconia; an efficient and reusable acid catalyst for the selective synthesis of 4-phenyl-1,3-dioxane by Prins cyclization of styrene

Prins cyclization of styrene with paraformaldehyde was carried out over sulfated zirconia (SZ) catalyst in liquid phase. The SZ catalysts were synthesized by precipitation method with different sulfur impregnation and characterized by XRD, FT-IR, Nitrogen sorption, NH3-TPD. The SZ showed best perfor...

Full description

Saved in:
Bibliographic Details
Published in:Applied catalysis. A, General Vol. 451; pp. 71 - 78
Main Authors: Marakatti, Vijaykumar S., Shanbhag, Ganapati V., Halgeri, A.B.
Format: Journal Article
Language:English
Published: Kidlington Elsevier 31.01.2013
Subjects:
Catalysis
Catalysts
Chemistry
Exact sciences and technology
General and physical chemistry
Reusable
Solvents
Sorption
Styrenes
Sulfur
Surface physical chemistry
Synthesis
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zirconium dioxide
Paraformaldehyde
Binary compound
Selectivity
Liquid phase
Sulfuric acid
Precipitation
Synthesis
Sulfur
Sulfated zirconia
Dioxane
Hydrocarbon
Transition element compounds
Acidity
Nitrogen
Conversion
X ray diffraction
Sorption
Infrared spectrometry
Zirconia
1,3-Dioxane
Ammonia
Heterogeneous catalysis
Impregnation
Acids
Adsorption
Cyclization
Styrene
Benzenic compound
Reusable catalyst
Prins cyclization
ISSN:0926-860X
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Prins cyclization of styrene with paraformaldehyde was carried out over sulfated zirconia (SZ) catalyst in liquid phase. The SZ catalysts were synthesized by precipitation method with different sulfur impregnation and characterized by XRD, FT-IR, Nitrogen sorption, NH3-TPD. The SZ showed best performance among different types of acid catalysts. The acidity of SZ optimized by different concentrations of H2SO4 treatment influences the selectivity for dioxane. The sulfur loading, nature of solvent, temperature, catalyst amount, mole ratio and reusability of catalyst were investigated. The SZ catalyst synthesized by impregnating 2N sulfuric acid was found to be highly selective for the synthesis of 4-phenyl-1,3-dioxane (93%) with almost complete conversion of styrene ( similar to 100%). The catalyst was recycled thrice with negligible decrease in the yield of 4-phenyl-1,3-dioxane.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0926-860X
DOI:10.1016/j.apcata.2012.11.016