The reaction between dimethyl acetylenedicarboxylate and various NH-acids in the presence of catalytic amounts ofAg/KF/CP@MWCNTs leads to amide derivatives in excellent yields. The Ag/KF/CP@MWCNT is generated by water extractof rhizome Petasites hybridus as an environmentally media and moderate base. Also, Ag/KF/CP@MWCNT leads to increasing of yield of products and has notable reusability. Besides, reducing organic pollutants of the 4-nitrophenol (4-NP) was carried out by generating Ag/KF/CP@MWCNTs in water at room temperature. The results displayed the Ag/KF/CP@MWCNT reduced pollutants of organic compounds in a short time. The synthesized pyrrolo [1,2,4]triazoloquinazoline have high antioxidant power.The present protocol offers the advantages of clean reaction, short reaction time, high yield, easy purification and affordability of the catalyst. Manuscript profile

Functionalized aminothiazole are generated from the reaction of dimethyl acetylenedicarboxylate, benzoylisothiocyanates, primary amines, hydrazonoyl chloride and triphenylphosphine in water. Particularly valuable features of this method include high yields of products, broad substrate scope, short reaction time and straightforward procedure. Manuscript profile

An efficient synthesis of iminetriazole derivatives is described via an one-pot reaction between acid chlorides, 3-amino-2-butanone, primary amines and hydrazonoyl chloride under solvent-free conditions at room temperature in good yields. Also, the antimicrobial activity of some synthesized compounds proved by employing the disk diffusion test on Gram-positive and Gram-negative bacteria. This procedure has some benefits such as short reaction time, product with excellent yields, simple catalyst and products separation. Manuscript profile

An efficient synthesis of functionalized imidazoles via a one-pot reaction between ninhydrin, primary alkylamines, arylisothiocyanates, acetylenic esters and N-formylmorpholine as green solvent is described. Manuscript profile

A series of substituted morpholine-2-thione derivatives were synthesized via one-pot multicomponent reactions of nitromethane, carbon disulfide and aziridine in the presence of Et3N under solvent-free conditions. Particularly valuable features of this method include high yields of products, broad substrate scope, short reaction time and straightforward procedure. Manuscript profile

An efficient synthesis of imidazolo thiazines is described. This involves a reaction of isothiocyanate with Pyruvates in the Presence of imidazole. Manuscript profile