Synthesis of chiral glycolurils from (<Emphasis Type="Italic">S</Emphasis>)-(+)- and (<Emphasis Type="Italic">R</Emphasis>)-(-)-1-<Emphasis Type="Italic">sec</Emphasis>-butyl-3-methylurea期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Synthesis of chiral glycolurils from (S)-(+)- and (R)-(-)-1-sec-butyl-3-methylurea

Authors:	R.?G.?Kostyanovsky author-information" > author-information__contact u-icon-before" > mailto:kost@chph.ras.ru" title=" kost@chph.ras.ru" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,G.?K.?Kadorkina,I.?S.?Bushmarinov,K.?A.?Lyssenko,I.?I.?Chervin,V.?R.?Kostyanovsky

Affiliation:	1. N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, 4 Kosygina St., Moscow, 119991, Russia 2. A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova St., Moscow, 119991, Russia

Abstract:	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.

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