A simple, practical, and efficient approach to synthesize new series of 2-(3-(2,4-dichlorophenoxy)-2-(4-(dimethylamino)phenyl)-4-oxoazetidin-1-ylamino)-N-arylacetamide by Staudinger [2 + 2] cycloaddition reaction. The titled compounds were evaluated for their antibacterial and antifungal activity against eight microorganisms. All the newly synthesized compounds are characterized by IR, 1 H-NMR, and mass spectroscopic data.

magnified imageN‐Benzylidene‐4‐(phenyldiazenyl)aniline (Ia, Ib, Ic, Id, Ie, If, Ig, Ih, Ii, Ij) has been prepared from p‐aminoazobenzene with different aromatic aldehydes under microwave irradiation, which on further treatment with chloro acetic acid and POCl3 in the presence of triethyl amine gave the title compounds. The structure of the compounds has been confirmed by spectroscopic techniques (IR and 1H NMR) and elemental analysis. These azetidinones analogues were screened for their antimicrobial activities against strains of different microorganisms. Some of the compounds displayed the promising antibacterial activities against some bacterial strains. J. Heterocyclic Chem., (2010).

A simple, highly efficient and environmentally friendly microwave accelerated one-pot synthesis of a series of differently substituted bis-azetidinones have been synthesized expeditiously in good yields from 1,2-diaminoethane and aromatic aldehydes in the presence of zeolite. The structures of the newly synthesized compounds were confirmed by IR, NMR, and mass spectra. The design and calculated molecular properties of all the reported compounds are on the basis of hypothetical antibacterial pharmacophores, which were formulated to interact with microorganisms. A correlation of structure and activity relationship of these compounds with respect to Lipinski rules and drug likeness properties of drugs are described and verified experimentally.

In this study, one‐pot rapid and efficient series of phenylazetidin‐2‐ones were synthesized from N,N‐dimethylaminobenzaldehyde, different substituted aromatic amines and phenylacetyl chloride in the presence of zeolite catalyst under microwave irradiation. We also reported schiff bases (1a–j) by classical and conventional microwave technique. The titled compounds are evaluated for their antimicrobial properties. The activities are due to CO, CN, linkages in 2‐azetidinones. All the compounds have shown comparable antibacterial activities. J. Heterocyclic Chem., (2011).

A series of new 1, 10‐phenanthroline derivatives are synthesized by the four‐component domino reactions of 8‐hydroxy quinoline, aromatic aldehydes, methyl/ethyl acetoacetate and ammonium acetate in the presence of zeolite (montmorillonite K‐10) using both conventional and microwave methods. Most of the new compounds possessed moderate to significant anti‐bacterial and anti‐fungal activities.