Synthesis of novel biscrown ethers with rigid cis/trans ethylene bridge  

作　　者：Jian Quan Fan La Sheng Jiang Min Zhang Na Wei Ya Hui Feng Shu Juan Han Hui Wang 

机构地区：[1]School of Chemistry and Environment, South China Normal University, Guangzhou 510006, China

出　　处：《Chinese Chemical Letters》2008年第5期513-517,共5页中国化学快报（英文版）

基　　金：National Natural Science Foundation of China （No. 20672038）; Natural Science Foundation of Guangdong Province （No. 5005934）.

摘　　要：Two novel biscrown ethers with rigid cis/trans ethylene linker were synthesized via Wittig reaction in high yield （about 80%）. Their pure cisltrans-isomers were obtained by column chromatography separation. And their structure/configuration was confirmed by ^1H NMR,^ 13C NMR, ESI mass spectrum, elemental analysis and UV-vis speca＇a.Two novel biscrown ethers with rigid cis/trans ethylene linker were synthesized via Wittig reaction in high yield （about 80%）. Their pure cisltrans-isomers were obtained by column chromatography separation. And their structure/configuration was confirmed by ^1H NMR,^ 13C NMR, ESI mass spectrum, elemental analysis and UV-vis speca＇a.

关 键 词：Biscrown ethers SYNTHESIS Characterization Cis/trans configuration 

分 类 号：O623.423[理学—有机化学]