作者:Alexander Gehre、Stephen P. Stanforth、Brian Tarbit
DOI:10.1016/j.tet.2008.12.006
日期:2009.2
The 2,2′:6′,2″-terpyridines 7a–c were prepared in good yield by reacting α-acetoxy-α-chloro-β-keto-esters 3a–c with bis-amidrazone 4 and 2,5-norbornadiene 6 in ethanol at reflux. Compounds 3a and 3b gave the 2,2′:6′,2″-terpyridines 9a and 9b, respectively, in moderate yield when treated with compound 4 and enamine 8.
的2,2':6',2“-terpyridines 7A - Ç通过反应α乙酸基α氯β酮酯以良好的收率制备3A - Ç与二氨基腙4和2,5-降冰片二烯6在乙醇中回流。当用化合物4和烯胺8处理时,化合物3a和3b分别以中等收率得到2,2':6',2''-吡啶并9a和9b。