naa a22 4500 510734588 CHVBK 20180411083005.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s12039-013-0427-5 doi (NATIONALLICENCE)springer-10.1007/s12039-013-0427-5 Montmorillonite K-10 as a catalyst in the synthesis of 5, 5-disubstituted hydantoins under ultrasound irradiation [Elektronische Daten] [J SAFARI, L JAVADIAN] The rapid and highly efficient synthesis of 5,5-disubstituted hydantoins achieved by three-component condensation of corresponding ketones and aldehydes, potassium cyanide and ammonium carbonate in an additional reaction under ultrasound irradiation by using montmorillonite K-10 as a heterogenous catalyst. Utilizing ultrasound irradiation and montmorillonite in this method has several benefits, for example short reaction time, high yield and use of recyclable catalyst. Graphical Abstract A convenient and facile method for synthesis of hydrantoin derivatives using substituted aldehydes and ketones in the presence of H2O/EtoH by montmorillonite as a useful catalyst under ultrasound irradiation is discussed. Indian Academy of Sciences, 2013 Ultrasound irradiation nationallicence 5,5-disubstituted hydantoin nationallicence montmorillonite K-10 nationallicence Bucherer-Bergs reaction nationallicence SAFARI J. Laboratory of Organic Chemistry Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167, Kashan, I.R. Iran aut JAVADIAN L. Laboratory of Organic Chemistry Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167, Kashan, I.R. Iran aut Journal of Chemical Sciences Springer India 125/5(2013-09-01), 981-987 0974-3626 125:5<981 2013 125 12039 https://doi.org/10.1007/s12039-013-0427-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12039-013-0427-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- SAFARI J. Laboratory of Organic Chemistry Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167, Kashan, I.R. Iran aut NATIONALLICENCE 700 1- JAVADIAN L. Laboratory of Organic Chemistry Research, Department of Organic Chemistry, College of Chemistry, University of Kashan, P.O. Box: 87317-51167, Kashan, I.R. Iran aut NATIONALLICENCE 773 0- Journal of Chemical Sciences Springer India 125/5(2013-09-01), 981-987 0974-3626 125:5<981 2013 125 12039 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer