Influence of Lewis acids on the facial selectivity in cycloadditions of sugar-derived dihydropyranones

The influence of such Lewis acids as Et2O·BF3, ZnCl2, SnCl4 and TiCl4 on the stereochemical course of the Diels-Alder cycloadditions of sugar-derived (2S)-alkoxydihydropyranones was studied. The first two catalysts promoted the addition of dienes to give (3S,4aR,8aS)-3-alkoxy-4a,5,8,8a-tetrahydro-2-...

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Detalles Bibliográficos
Autores principales:	Iriarte Capaccio, C.A., Varela, O.
Formato:	JOUR
Materias:	alkadiene carbohydrate derivative chelate Lewis acid pyran derivative tin derivative titanium derivative zinc derivative article catalyst chemical reaction concentration (parameters) cycloaddition Diels Alder reaction proton nuclear magnetic resonance stereochemistry Betulaceae
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00404039_v44_n21_p4023_IriarteCapaccio
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

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