NDLI: The active site accessibility aspect of montmorillonite for ketone yield in ester rearrangement

Content Provider	Royal Society of Chemistry (RSC)
Author	Bhat, Y. S. Venkatesha, N. J. Prakash, B. S. Jai
Copyright Year	2015
Abstract	The removal of Al from the octahedral layer of montmorillonite by organic acid treatment results in increased microporosity generating a material with different surface features from the virgin clay. The micropores thus generated are found to be responsible for ester to ketone transformation. Various parameters of the newly generated pores such as the pore diameter, pore structure, pore volumes and acidity by pyridine-FTIR were evaluated with respect to ester to ketone formation. The best correlation was found between the volume accessibility factors (VAF) and the ketone yield. The VAF reflects the extent of volume space available around the acid site for the reactant to orient in a specific way for the transformation to occur within the pore to form a specific product. This acid site accessibility aspect was further verified by extending to micropores with large VAF generated by treatment with phenoldisulfonic acid (PDSA).
Starting Page	1629
Ending Page	1637
Page Count	9
File Format	HTM / HTML PDF
ISSN	20444753
Volume Number	5
Issue Number	3
Journal	Catalysis Science & Technology
DOI	10.1039/c4cy01356e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Ester Acid Montmorillonite PDCA Clay minerals Ketone
Content Type	Text
Resource Type	Article
Subject	Catalysis

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The active site accessibility aspect of montmorillonite for ketone yield in ester rearrangement