INTRODUCTION In recent years, studies of the reaction rates of small molecules in the presence of synthetic polymers containing catalytically active functions have contributed significantly to the understanding of the mechanism of enzyme behaviour1. Of particular interest in the field of polymeric catalysis have been the studies of the solvolyses of esters catalyzed by polymers containing pende...

Recently initiated studies concerning surfacemodifications of poly(dimethylsiloxanes) usingmicrowave plasmonswere extended to polyurethane (PU) surfaces. However,when the same experimental conditions used in the closed and open flowmicrowave plasma reactorswere applied, no chemical bonding of imidazole molecules to PU surfaces was detected. In order to facilitate the imidazole-urethane surface ...

The preparation of two types of imidazole derivatives bearing a hydrazide group was achieved by treatment of the corresponding esters with NH2NH2·H2O in MeOH at room temperature. In the case of 4-(ethoxycarbonyl)-1H-imidazole 3-oxides 3, hydrazides of type 1 were formed with retention of the N-oxide structure (Scheme 1). Interestingly, due to a strong H-bonding, no deoxygenation of the N-O func...