Synthesis of Polyhydroxylated Pyrrolidines and Aziridinopyrrolidines from [4π+2π] Cycloadducts of Cyclopentadiene and Imines/2H-Azirines
Autor: | Maria J. Alves, Marı́a Luisa C. Vale, Fabio Rizzo Aguiar, Xerardo García-Mera, José E. Rodríguez-Borges |
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Rok vydání: | 2008 |
Předmět: | |
Zdroj: | Synthesis. 2008:971-977 |
ISSN: | 1437-210X 0039-7881 |
DOI: | 10.1055/s-2008-1032196 |
Popis: | The synthesis of 2-functionalized 3,5-bis(hydroxymethyl)pyrrolidines from readily available polycyclic Diels-Alder adducts by a reaction sequence involving three steps is described. The same methodology has been applied to obtain the aziridine counterparts from the corresponding methyl 2-azatricyclo[3.2.1.0 2,4 ]oct-6-ene-4-carboxylates. The key steps in the synthetic strategy are dihydroxylation with osmium tetroxide/ N-methylmorpholine N-oxide, oxidative cleavage with sodium periodate, and reduction using sodium borohydride or lithium aluminum hydride; overall yields ranged from 40-60%. |
Databáze: | OpenAIRE |
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