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A series of 2-methylaminobenzimidazole derivatives (1-11) were synthesized by the reaction of 2-(chloromethyl)-1H-benzimidazole derivatives with primary aromatic amines. All these compounds were… (More)
Tetrahydroquinoline derivatives (III) and (V) are synthesized using inexpensive and eco-friendly phosphotungstic acid as catalyst.
For the first time Phosphotungstic acid (PTA), is used as a some new catalyst for the synthesis of tetrahydroquinoline derivatives with high yields is described. PTA a heterogeneous catalyst is… (More)
Abstract In this study H 3 PO 4 ·12WO 3 · x H 2 O is found to catalyze the preparation of Schiff bases from the reaction of 3-(1 H -Benzimidazol-2-yl)naphthalene-2-amine with different aldehydes… (More)
Diphtheria is a forgotten communicable disease and presumed to be under sufficient control so much so that life savings drugs required for its treatment has disappeared from most hospitals. Contrary… (More)