Tayebeh Sanaeishoar
[ 1 ] - A One-Pot Synthesis of 1,8- Dioxodecahydroacridine Using Zinc Chloride Silica gel-supported Catalyst under Solvent-Free Conditions
Zinc chloride silica gel-supported was found to be an efficient, inexpensive catalyst for the synthesis of 1,8-dioxodecahydroacridines via one-pot three-component condensation of aryl aldehydes, dimedone, andammonium acetate in high yields. The described novel synthetic method propose several advantages of safety, mild condition, short reaction times, high yields, simplicityand easy workup comp...
[ 2 ] - A Novel, Heterogeneous Catalyst for the One-Pot Synthesis of 1,8-Dioxodecahydroacridine Derivatives Under Solvent-Free Conditions
An efficient and environmental-friendly synthetic route to 1,8-dioxodecahydroacridines derivatives have been developed via multi-component one-pot Hantzsch reaction of various aldehydes and ammonium acetate with 2 equivalents dimedone in the presence of Phosphorus pentoxide supported on aluminaas catalyst under solvent-free conditions. The present approach offersseveral advantages such as short...
[ 3 ] - Synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free conditions via Phosphorus pentoxide supported on alumina (P2O5/Al2O3) catalyzed tandem reaction of Aldehyde with dimedone
Phosphorus pentoxide used on alumina (P2O5/Al2O3) as an inexpensive, eco-friendly and non-toxic acid catalyst for the one-pot synthesis of 1,8-dioxo-octahydroxanthenes via multi-component reactions under solvent-free conditions. The present approach offers several advantages such as short reaction times, high yields, easy purification, recovery and reusability of the catalyst.
[ 4 ] - P2O5/Al2O3 as an effieient catalyst for one-pot synthesis of polyhydroquinoline derivatives under solvent-free conditions
The condensation of aromatic aldehydes, dimedone, ethylacetoacetate and ammonium acetate promoted by was Phosphorus pentoxide supported on alumina carried out under solvent-free conditions to afford corresponding polyhydroquinolinederivatives. This method provides several advantages including high yields, low reaction times, easy work up and little catalyst loading.
[ 5 ] - An Efficient Synthesis of Vinylphosphonates from Alkyl Cyanoformates, Activated Acetylenes, and Trialkyl Phosphites
An efficient synthesis of vinylphosphonates is described. This involves the reaction of alkyl cyanoformates and dialkyl acetylendicarboxylates in the presence of trialkyl phosphites. The 1H, 13C NMR, and 31P NMR spectra of vinylphosphonates having different substitution are consistent with the presence of two geometrical isomers.
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