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Synthesis of oxa-aza spirobicycles by intramolecular hydrogen abstraction promoted by N-radicals in carbohydrate systems

✍ Scribed by Raimundo Freire; Angeles Martı́n; Inés Pérez-Martı́n; Ernesto Suárez

Book ID
104251400
Publisher
Elsevier Science
Year
2002
Tongue
French
Weight
281 KB
Volume
43
Category
Article
ISSN
0040-4039

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✦ Synopsis

The preparation of 1-oxa-6-azaspiro[4.4]nonane, 1-oxa-6-azaspiro[4.5]decane, 6-oxa-1-azaspiro[4.5]decane, and 1-oxa-7azaspiro[5.5]undecane ring systems by 1,6-and 1,7-hydrogen atom transfer promoted by phosphoramidyl radicals in carbohydrate models is described. The N-radicals are generated by reaction of dibenzyl phosphoramidate derivatives of C-glycosides with (diacetoxyiodo)benzene and iodine through an homolytic fragmentation of iodoamide intermediates.

📜 SIMILAR VOLUMES

ChemInform Abstract: Synthesis of Oxa-Az
ChemInform Abstract: Synthesis of Oxa-Aza Spirobicycles by Intramolecular Hydrogen Atom Transfer Promoted by N-Radicals in Carbohydrate Systems.
✍ Angeles Martin; Ines Perez-Martin; Ernesto Suarez 📂 Article 📅 2009 🏛 John Wiley and Sons ⚖ 56 KB 👁 1 views

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