Abstract
In this review we have paid attention to cesium and aluminum salts of dodecatungstophosphoric acid as ecofriendly and efficient heterogeneous catalysts. The structural effect and also catalytic properties of exchanging Cs+ with protons in dodecatungstophosphoric acid is discussed. Using cesium and aluminum salts of dodecatungstophosphoric acid as efficient catalysts for Friedel-Crafts reactions such as acylation and alkylation of aromatic compounds, Fries, Claisen and pinacol rearrangements, esterification, amidation, ether formation, protection of thiols, alcohols and amines, conversion of aldehydes to their acylals, ring opening of epoxides, selective protection of one hydroxy group in diols, preparation of β-hydroxythioethers and regioselective bromination of aromatic compounds are discussed.
Keywords: Friedel, –, Crafts acylation, anisole, solvent free conditions, Acetic Anhydride, Fries Rearrangement
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
Related Books
Advances in Organic Synthesis
The Synthetic Methods, Structures, and Properties of the Ca-C σ Bond Organocalcium Containing Compounds
Advances in Organic Synthesis
Chemistry of Bipyrazoles: Synthesis and Applications
Advances in Organic Synthesis
Advanced Nanocatalysis for Organic Synthesis and Electroanalysis
Advances in Organic Synthesis
Advances in Organic Synthesis
2