A new method of the solvent-free synthesis of substituted imidazolidin-4-ones is described. The method is developed for microwave-assisted solvent-free conditions and compared with classical thermally initiated solvent-free conditions. In both cases the reaction proceeds with good yields. However, the reaction under microwave conditions is accelerated six-times. Thermal effect of the microwaves is observed.
Pospisil, J., & Potacek, M. (2004). A solvent-free method for substituted imidazolidin-4ones synthesis. Heterocycles, 63(5), 1165-1173. https://hdl.handle.net/2078.5/148702 (Original work published 2004)