ChemInform Abstract: Synthesis of Chiral Glycolurils from (S)-(+)- and (R)-(-)-1-sec-Butyl-3-methylurea

Autor: Ivan S. Bushmarinov, Konstantin A. Lyssenko, V. R. Kostyanovsky, Remir G. Kostyanovsky, Ivan I. Chervin, G. K. Kadorkina
Rok vydání: 2013
Předmět:
Zdroj: ChemInform. 44
ISSN: 0931-7597
DOI: 10.1002/chin.201308124
Popis: Chiral dialkyl- and tetraalkylglycolurils have been obtained using chiral (S)-(+)- and (R)-(-)-1-sec-butyl-3-methylurea as starting materials. The diastereomer (S)-(+)-2,6-di-sec-butyl-4,8-dimethyl-2,4,6,8-tetraazabicyclo[3.3.0]-octane-3,7-dione was separated into stereoisomers, for the higher melting of which the absolute configuration was determined as (S,S,S,S) by X-ray structural analysis.
Databáze: OpenAIRE