E-Journal of Chemistry (Jan 2011)
One-Pot Synthesis and Antimicrobial Activity of Novel α-Aminophosphonates Using TMG
Abstract
α-Aminophosphonates (4a-j) were synthesized in one-pot simultaneous reaction of 4-bromo-3-methyl benzenamine (1), dimethylphosphite (3) and different aromatic aldehydes (2a-j) by Kabachnik-Fields reaction in the presence of tetramethylguanidine (TMG) (10 mole%) as catalyst in toluene at reflux temperature afforded 4a-j in good yields. All these compounds were found to exhibit moderate to good antimicrobial activity.