Synthesis of Substituted Piperidines, Decahydroquinolines and Octahydroindolizines by Radical Rearrangement Reactions of 2-Alkylideneaziridines

Autor: Natacha Prevost, Michael Shipman
Rok vydání: 2003
Předmět:
Zdroj: ChemInform. 34
ISSN: 1522-2667
0931-7597
Popis: Rearrangement of a variety of 3-(2-methyleneaziridin-1-yl)propyl radicals, generated using Bu 3 SnH/AIBN by homolytic cleavage of phenylselenide substituted 2-methyleneaziridines, produces 3-methylenepiperidines in yields ranging from 58 to 68%. By combining this radical rearrangement with an additional 5- exo -trig cyclisation, this method provides an octahydroindolizine with moderate levels of diastereocontrol (d.r.=4:1). This rearrangement works with related 2-isopropylideneaziridines, but cannot be successfully extended to 4-(2-methyleneaziridin-1-yl)butyl radicals.
Databáze: OpenAIRE