Synthesis of Substituted Piperidines, Decahydroquinolines and Octahydroindolizines by Radical Rearrangement Reactions of 2-Alkylideneaziridines
Autor: | Natacha Prevost, Michael Shipman |
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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 |
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