50 research outputs found
Phosphosulfonic acid, an efficient solid acid catalyst for the one-pot preparation of 14-aryl-14H-dibenzo[a,j]xanthenes and 1,8-dioxo-octahydro-xanthenes under solvent-free conditions
Get PDFAn expeditious procedure for the synthesis of 14- aryl-14H-dibenzo[a,j]xanthenes and 1,8-dioxo-octahydro-xanthenes through one-pot pseudo three component condensation of β-naphthol or dimedone with various aryl aldehydes is described. This greener protocol is catalyzed by phosphosulfonic acid, and proceeds efficiently in the absence of any organic solvent under optimized, mild, green and environmentally benign reaction conditions in high yields within 20-55 minutes
Nanostructured polyethersulfone membranes for dye and protein separation:Exploring antifouling role of holmium (III) molybdate nanosheets
Get PDFFacile and Stereospecific Synthesis of Various Dienones Using Task-specific Ionic Liquid/Borohydride as Stable and Promoted Hydrogen Release Reagent
No full textChemInform Abstract: Thermally Induced Ring Contraction as a Novel and Straightforward Route for the Synthesis of 2-Furyl Acetonitrile Derivatives.
No full textChemInform Abstract: An Innovative and Atom-Efficient Synthesis of Bioactive 2-Aroylfuran Derivatives Using Macroporous Polymer-Supported Cyanide.
No full textChemInform Abstract: Expeditious Synthesis of Aromatic Cyanodienones Using Neutral Alumina as a Versatile Heterogeneous Catalyst.
No full textDesign and synthesis of a new porous organic polymer equipped with N-propyl sulfamic acid functionalities: As an efficient heterogeneous catalyst for the synthesis of 1,8-dioxo-octahydroxanthene derivatives
No full textFacile and selective solvent-free synthesis of 2-isoxazolines under microwave irradiation
No full textDesign and synthesis of a magnetic hierarchical porous organic polymer: A new platform in heterogeneous phase-transfer catalysis
No full textHigh-Speed Reduction of Triarylpyrylium Salts Using Zn(BH4)2/SiO2 as an Efficient and Regiospecific Reducing Reagent
Get PDFThe regiospecific reduction of some triarylpyrylium salts in the presence of modified hydride donors was investigated. Among these reagents, Zn(BH4)2/SiO2 performed the best results. The major advantages of this reagent are the cheapness, availability, simplicity in operation, very short reaction time and much improved regioselectivity in comparison with the other reducing reagents
