Synthesis, anti-inflammatory activity, and QSAR study of some Schiff bases derived from 5-mercapto-3-(4′-pyridyl)-4H-1,2,4-triazol-4-yl-thiosemicarbazide

Efficient utilization of potash alum as a green catalyst for production of furfural, 5-hydroxymethylfurfural and levulinic acid from mono-sugars

“…32 The results obtained are in line with earlier studies by various prominent research groups which suggests that PA contains acidic properties possibly due to presence of alumina which makes it an interesting and effective catalyst for one pot conversion of mono-sugar conversion as compared to mineral acids, metals salts and zeolites. 33,34 In this regard, Yao-Bing Huang et al, have recently reported 100% conversion of LA and 99.4% methyl levulinate yield from Al 2 (SO 4 ) 3 at 110 C under microwave-irradiation.…”

Synthesis and Degradation of Schiff Bases Containing Heterocyclic Pharmacophore

“…Various derivatives of 1,2,4-triazolic nucleus, such as Schiff bases were investigated in the last decades, for the great variety of medical applications such as antimicrobial [1], hypoglycemic [2], anti-inflammatory [3], anticancer [4], fungicidal [5], anticonvulsant [6] and antiproliferative [7] activities. Schiff bases derived from 1,2,4-triazole are also studied for different technical purposes, such as corrosion inhibition for mild steel in acidic medium [8] or use as magnetic materials and photo-chemically driven molecular devices [9].…”

Green Chemical Synthesis and Analgesic Activity of Fluorinated Thiazolidinone, Pyrazolidinone, and Dioxanedione Derivatives

“…In continuation to our interest on environmentally benign synthesis of heterocyclic compounds [47][48][49][50], we now report the green synthesis of fluorinated thiazolidinone (3a-e), pyrazolidinone (5a-e) and dioxanedione derivatives (7a-e) via Knoevenagel condensation at room temperature in the presence of catalytic amount of lemon juice as natural acid catalyst (Scheme 1). We have extensively studied the title reaction taking two parameters, namely, type of catalysts and type of solvent.…”