DBU及DBN与丙炔酸甲酯的迈克尔型加成及其产物的核磁共振谱学研究  

Micheal-type Addition of DBU or DBN with Methyl Propiolate and NMR Studies of the Reaction Products

作　　者：施志坚[1] 聂玲清[1] 曹卫国[1] 

机构地区：[1]上海大学化学系,上海200436

出　　处：《分析科学学报》2004年第6期586-588,共3页Journal of Analytical Science

基　　金：国家自然科学基金(No.20172037)

摘　　要：1,8 二氮杂二环[5,4,0]十一碳 7 烯(DBU)及1,5 二氮杂二环[4,3,0]壬碳 5 烯HNMR、1HCOSY、13CNMRH 1与丙炔酸甲酯反应可生成成环化合物。通过对成环产物的1谱的分析,讨论了其化学位移及J 偶合特征。同时研究了整个反应可能的历程和机理。1,8-diazabicyclo undec-7-ene(DBU)or 1,5-diazabicyclonon-5-ene(DBN) react with methyl propiolate to yield tricyclic derivatives. The products were analyzed in detail by (~1H) NMR、(^(13)C) NMR and 2D NMR. The (~1H) NMR and ^(13)C NMR signals were assigned and their structures were identified. The reaction paths and mechanism were also discussed.

关 键 词：核磁共振 DBU DBN 丙炔酸甲酯 归属 

分 类 号：O657.2[理学—分析化学] O62[理学—化学]