A Pd/C catalyzed reductive carbonylation of nitroarenes for the synthesis of unsymmetricalureas has been developed. Using inexpensive and stable nitroarenes as the substrates, a series of unsymmetricalureas were produced in moderate to good yields. A range of functional groups including thioethers, halides and vinyl were compatible with this reaction. As a heterogeneous catalyst, Pd/C was recycled
A series of N-alkyl substituted urea derivatives were synthesized and evaluated for their in vitro antibacterial and antifungal activities. The N-alkyl substituted urea derivatives bearing morpholine moiety (3a–3k) showed better activities than those bearing diethylamine moiety (2a–2f). Compounds having fluoro substituent at ortho (3c) and para (3b) positions of the phenyl ring exhibited potent antimicrobial