A Facile Synthesis of Indolizines　by　1，3－Dipolar　Cycloaddition　of　Pyridinium　and　Related　Heteroaromatic　Ylides　with　Alkenes　in　the　Presence　of　TPCD，Py_4Co（HCrO_4）_2  

作　　者：ZHU Chang-cheng WEI Xu-dong HU Jia-xin WANG De-fen and HU Hong-wen(Department of Chemistry, Nanjing University,Nanjing, 210008) 

出　　处：《Chemical Research in Chinese Universities》1994年第2期93-101,共9页高等学校化学研究（英文版）

摘　　要：facile one-step method is presented for the synthesis of indolizines in moder-ate to high yields by reaction of pyridinium, quinolinium and isoquinolinium ylideswith acrylonitrile, methyl acrylate and diethyl maleate respectively in the presenceof tetrakis-pyridino-cobalt(Ⅱ)dichromate (TPCD) in DMF.facile one-step method is presented for the synthesis of indolizines in moder-ate to high yields by reaction of pyridinium, quinolinium and isoquinolinium ylideswith acrylonitrile, methyl acrylate and diethyl maleate respectively in the presenceof tetrakis-pyridino-cobalt(Ⅱ)dichromate (TPCD) in DMF.

关 键 词：INDOLIZINES 1  3-Dipolar cycloaddition Pyridinium Ylides Quinolini-um ylides Isoquinolinium ylides 

分 类 号：O621.25[理学—有机化学]