Synthesis of glycoluril catalyzed by potassium hydroxide under ultrasound irradiation.
Synthesis of the glycolurils catalyzed by potassium hydroxide was carried out in 17-75% yield at 40 degrees C in EtOH under ultrasound irradiation. Compared to the method using stirring, the main advantage of the present procedure is milder conditions and shorter reaction time.
Li
Ji-Tai
JT
College of Chemistry and Environmental Science, Hebei University, Key Laboratory of Analytical Science and Technology of Hebei Province, Baoding 071002, PR China. lijitai@hbu.cn
Liu
Xiao-Ru
XR
Sun
Ming-Xuan
MX
D000480:Alkynes / Q000138:chemical synthesis* / Q000528:radiation effects*; D002384:Catalysis; D006878:Hydroxides / Q000737:chemistry* / Q000528:radiation effects*; D007093:Imidazoles / Q000138:chemical synthesis* / Q000528:radiation effects*; D010658:Phenylglyoxal / Q000031:analogs & derivatives* / Q000737:chemistry / Q000528:radiation effects; D017680:Potassium Compounds / Q000737:chemistry* / Q000528:radiation effects*; D011829:Radiation Dosage; D013010:Sonication / Q000379:methods*; D014508:Urea / Q000737:chemistry* / Q000528:radiation effects; D006574:Heterocyclic Compounds, 2-Ring; D048289:Imidazolidines
D000480:Alkynes; D006878:Hydroxides; D007093:Imidazoles; D010658:Phenylglyoxal; D017680:Potassium Compounds; D014508:Urea; C006697:benzil; C092018:glycoluril; D006574:Heterocyclic Compounds, 2-Ring; D048289:Imidazolidines; C029943:potassium hydroxide