One step synthesis of heteropolycycles, indolizinoquinolizines by the reaction of either pyridylketene dithioacetal with pyridinium salt or pyridiniumketene dithioacetal with pyridylacetonitrile
作者:Yoshiro Matsuda、Shizuki Ide、Kazuki Furuno、Takahiro Itou、Chieko Motokawa、Yasushige Chiyomaru
DOI:10.1016/s0040-4020(01)80192-7
日期:1993.1
The heteropolycycles, indolizinoquinolizines (7, 8, 20) were obtained by the reaction of either pyridylketene dithioacetal (2) with two molar equivalents of pyridinium salts (4a-c) or pyridiniumketene dithioacetal (19) with two molar equivalents of pyridylacetonitrile (3) in the presence of triethylamine.