Abstract
In the presence of a catalytic amount of selenium under ambient
pressure of carbon monoxide with oxygen, solvent-free facile synthesis
of urea derivatives was developed; the aim is for green and sustainable
chemistry. For example, N,N′-dimethylethylenediamine (20
mmol) successfully afforded 1,3-dimethylimidazolidin-2-one (DMI)
in 74% yield (1487% based on Se) using selenium
catalyst (5 mol%) under mixed gas (CO/O2,
2:1) at 0.1 MPa, 20 ˚C without any additive or solvent.
Key words
solvent-free - DMI - urea derivatives - carbon
monoxide - selenium