M.B.Bagade

Microwave assisted solvent free synthesis of cyclohexenone and indazole derivatives were carried out by chalcones derived from different acetophenones and 1-naphthaldehyde. Structures of the compounds have been characterized by IR, 1H NMR, Mass spectrometry and elemental analysis. All the synthesized indazole derivatives were screened for antibacterial activity and are found to posses moderate to good activity against some species of bacteria.

An efficient and convenient multi component reaction for the synthesis of 2-Imino-4,6-diaryldihydropyrimidines scaffolds have been accomplished from chalcones and guanidine hydrochloride in the presence of a catalytic amount of an alkali under solvent-free conditions using microwave irradiation.  The synthesized pyrimidines have been characterized on the basis of their chemical properties and spectroscopic data.  Operational simplicity, short reaction times, excellent yields and environmentally-benign conditions are the other advantages of this protocol. Using this method, we have synthesized some new pyrimidines with antimicrobial properties and high chemical yields in much short reaction times.