One-pot, four component synthesis of pyrazolo[4′,3′:5,6]pyrido[2,3-d]pyrimidines derivatives
Journal Title: Asian Journal of Green Chemistry - Year 2018, Vol 2, Issue 4
Abstract
A green approach to synthesis of the polyfunctionalized pyrazole [4′,3′:5,6]pyrido[2,3-d] pyrimidines derivatives was successfully achieved via one-pot, four component reactions of β-aminocrotonitrile, phenyhydrazine, arylglyoxals, barbituric acid derivatives in the presence of TEA (Triethylamine) as a catalyst in water under the reflux conditions. This protocol provided mild reaction conditions, short reaction times, high yields, low cost, easy isolation of products and possible biological, and pharmaceutical activities.
Authors and Affiliations
Ramin Javahershenas, Jabbar Khalafy
Green oxidation reactions by graphene oxide-based catalyst with aqueous hydrogen peroxide
This study reports the synthesis, characterization and catalytic properties of a novel supported catalyst on the basis of nickel acetate hydrate (NiOAC) immobilized on graphene oxide (GO) modified polyethylene glycol (PE...
One-pot, clean and energy efficient synthesis of dibenzo[b,f][1,4]oxazepine derivatives promoted by ultrasound
In the present study, a variety of dibenzo [b,f][1,4] oxazepine derivatives was successfully synthesized in good yields under ultrasonic irradiation as an environmental friendly technique. This one-pot method is practica...
Response surface methodology: photodegradation of methyl orange by CuO/ZnO under UV light irradiation
Zinc oxide (ZnO) and copper oxide doped zinc oxide photocatalysts (CuO/ZnO) were synthesized by precipitation method. The effect of CuO loading on the physicochemical properties and photocatalytic performance of ZnO in p...
Identification and characterization of diterpenes from ethyl acetate fraction of stem barks of Boswellia papyrifera (del) hochst, sudanese medicinal plant
In this study, the diterpen compounds present in the ethyl acetate fraction of stem bark of Boswellia papyrifera grown in Sudan were investigated using gas chromatography-mass spectrometry (GC-MS), based upon interpretat...
Benign synthesis of 5-substituted 1H-tetrazoles via [3+2] cycloaddition of nitriles and sodium azide employing SO3H-carbon as an efficient heterogeneous catalyst
A novel and green methodology was developed for the synthesis of 5-substituted 1H-tetrazoles by [3+2] cycloaddition of nitriles with sodium azide in DMF at 100 °C in the presence of highly stable, water resistant and rec...