4,5-Dihydroxyimidazolidin-2-ones in the α-ureidoalkylation reaction of N-(carboxyalkyl)-, N-(hydroxyalkyl)-, and N-(aminoalkyl)ureas 1. α-Ureidoalkylation of N-(carboxyalkyl)ureas
Efficient synthesis of N,N’-methylenebisglycolurils
作者:Angelina N. Kravchenko、Ilya E. Chikunov、Galina A. Gazieva、Nina N. Makhova
DOI:10.1016/j.mencom.2016.03.018
日期:2016.3
Coupling of 6-(carboxy)alkyl-2,4-dialkylglycolurils with N-(hydroxymethyl)glycolurils gives N,N'-methylenebisglycolurils totally substituted at the nitrogen atoms, which are formed mostly as racemate diastereomers.