Preparation of α- and β-dienyl glycosides used as dienes in aqueous Diels-Alder reactions. Influence of the carbohydrate moiety on the thermodynamics of the reaction
作者:André Lubineau、Hugues Bienaymé、Yves Queneau
DOI:10.1016/0008-6215(95)00019-p
日期:1995.4
A series of 1,3-butadienyl glycosides (mono- and di-saccharides) have been prepared and the kinetics of their Diels-Alder reaction with buten-2-one in water have been studied. The activation parameters for these aqueous cycloadditions provide clues for the hydration structure of such glyco-organic compounds.
Aqueous cycloadditions using glyco-organic substrates. 1. Stereochemical course of the reaction
作者:A. Lubineau、Y. Queneau
DOI:10.1021/jo00382a006
日期:1987.3
Aqueous [6 + 4] cycloadditions of tropone with 1-(glucopyranosyloxy)buta-1,3-diene
作者:André Lubineau、Giliane Bouchain、Yves Queneau
DOI:10.1039/a702447i
日期:——
The first aqueous [6 + 4] cycloaddition reaction is reported. Starting from tropone and glucopyranosyloxybuta-1,3-diene, bicyclic adducts arising from the expected exo-transition state have been obtained in fair yields under much milder conditions than those usually required, thus preventing side-[4 + 2] adduct formation by limiting the reversibility of the [6 + 4] process. Influence of the solvent