Studies On Synthesis And Self-assembly Of Dicarbamate Compounds

In this work, a new catalyst had been employed in the reaction of diol and urea in order to prepare the dicarbamate compounds. Through a lot of experiments, the optimized reaction conditions with good yields have been found. Using this method, five dicarbamate compounds, 1,4-phenylenebis(methylene)dicarbamate(L₁), 1,4-buta- nediyldicarbamate(L₂), 3-oxo-1,5-pentanediyldicarbamate(L₃), 2-butyne-1,4-diyldica- rbamate (L₄) and cis-2-butene-1,4-diyldicarbamate(L₅) have been synthesized. Their structures were confirmed by IR and 1H NMR.In addition, the self-assembly rule and hydrogen bonding interaction involved in self-assembly of dicarbamates in solid state were systematically studied by the analysis of the crystal structures of L₁～L₃, which may have potential application in the design of supramolecular structure.