With a series of unsatured compounds, 3-methylene-2,4-chromanedione can behave as ambident heterodiene or as dienophile affording the hetero-Diels-Alder and Diels-Alder adducts, respectively. The structural analysis aimed at identifying the peculiar spectral parameters of these adducts, has been performed via multidimensional NMR experiments supported by Molecular Mechanics calculations.
Structural determination of coumarin derivatives. Diels-Alder adducts using 3-methylene-2,4-chromanedione as trapping agent / R. Annunziata, L. Raimondi, G. Appendino, G. Cravotto, G. Palmisano. - In: GAZZETTA CHIMICA ITALIANA. - ISSN 0016-5603. - 125:10(1995), pp. 465-477.
Structural determination of coumarin derivatives. Diels-Alder adducts using 3-methylene-2,4-chromanedione as trapping agent
R. AnnunziataPrimo
;L. RaimondiSecondo
;
1995
Abstract
With a series of unsatured compounds, 3-methylene-2,4-chromanedione can behave as ambident heterodiene or as dienophile affording the hetero-Diels-Alder and Diels-Alder adducts, respectively. The structural analysis aimed at identifying the peculiar spectral parameters of these adducts, has been performed via multidimensional NMR experiments supported by Molecular Mechanics calculations.
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