Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/16767
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Título : Synthesis of oxa-aza spirobicycles by intramolecular hydrogen abstraction promoted by N-radicals in carbohydrate systems
Autor : Freire, Raimundo, Martín, Ángeles, Pérez-Martín, Inés, Suárez, Ernesto
Fecha de publicación : 9-Jun-2002
Editor: Elsevier
Citación : Tetrahedron Letters 43(29): 5113-5116 (2002)
Resumen: 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-7-azaspiro[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.
Descripción : 4 pages, 1 table, 2 schemes.-- Printed version published Jul 15, 2002.
Versión del editor: http://dx.doi.org/10.1016/S0040-4039(02)00983-8
URI : http://hdl.handle.net/10261/16767
ISSN: 0040-4039
DOI: 10.1016/S0040-4039(02)00983-8
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