Novel synthesis of nitrogen heterocycles using zirconium-promoted reductive coupling. Formal total synthesis of dendrobine
摘要:
A novel synthesis of nitrogen heterocycles by means of a zirconium-promoted, intramolecular reductive coupling reaction of an enyne or a diene was developed, and the formal total synthesis of dendrobine from (-)-carvone was achieved by a short sequence of steps.
Novel Synthesis of Nitrogen Heterocycles Using Zirconium-Promoted Reductive Cyclization
摘要:
Perhydroindole derivatives were prepared from enynes using zirconium-promoted reductive cyclization. The zirconacycles derived from enynes 1 were treated with iodine, isonitriles, oxygen, and carbon monoxide to give various heterocycles. The carbon-zirconium bonds of the zirconacycle could be selectively cleaved by different reagents.
Novel synthesis of nitrogen heterocycles using zirconium-promoted reductive coupling. Formal total synthesis of dendrobine
作者:Miwako Mori、Noriaki Uesaka、Masakatsu Shibasaki
DOI:10.1021/jo00039a001
日期:1992.6
A novel synthesis of nitrogen heterocycles by means of a zirconium-promoted, intramolecular reductive coupling reaction of an enyne or a diene was developed, and the formal total synthesis of dendrobine from (-)-carvone was achieved by a short sequence of steps.
Novel Synthesis of Nitrogen Heterocycles Using Zirconium-Promoted Reductive Cyclization
Perhydroindole derivatives were prepared from enynes using zirconium-promoted reductive cyclization. The zirconacycles derived from enynes 1 were treated with iodine, isonitriles, oxygen, and carbon monoxide to give various heterocycles. The carbon-zirconium bonds of the zirconacycle could be selectively cleaved by different reagents.