An Approach to Molecular Baskets with Ester-Crown Handles from Diphenylglycoluril

• 来源期刊: 中国高等学校学术文摘·化学
• 关键词: molecular basket crown diphenylglycoluril synthesis
• 年，卷（期）: 2006,（1）
• 页码范围: 108-111
• 页数: 4页
• 语种: 英文

摘要

A series of basket-shaped hosts with ester-crown handles have been synthesized by treating oligoethylene glycol bischloroacetates [CICH2CO(OCH2CH2)nOCOCH2Cl,n=1,2,3,4]and 1,2-bis(hydroxyethoxy)benzene bischloroacetates with a diphenylglycoluril-based molecular clip,1,3:4,6-bis(3,6-dihydroxy- 1,2-xylylene)tetrahydro-3a,6a-diphenylimidazo[5,5]imidazole-2,5(1H,3H)-dione(1),in dimethyl sulfoxide using K2CO3 as a base in yields of 15,35,40,38,and 20%.Their structures were identified by nuclear magnetic resonance and mass spectrum.The reaction conditions were also studied and optimized.