STRUCTURAL DETERMINATION OF COUMARIN DERIVATIVES - DIELS-ALDER ADDUCTS USING 3-METHYLENE-2,4-CHROMANEDIONE AS TRAPPING AGENT

Authors
ANNUNZIATA R RAIMONDI L APPENDINO G CRAVOTTO G PALMISANO G
Citation
R. Annunziata et al., STRUCTURAL DETERMINATION OF COUMARIN DERIVATIVES - DIELS-ALDER ADDUCTS USING 3-METHYLENE-2,4-CHROMANEDIONE AS TRAPPING AGENT, Gazzetta chimica italiana, 125(10), 1995, pp. 465-477
Citations number
25
Categorie Soggetti
Chemistry
Journal title
Gazzetta chimica italiana → ACNP
ISSN journal
00165603
Volume
125
Issue
10
Year of publication
1995
Pages
465 - 477
Database
ISI
SICI code
0016-5603(1995)125:10<465:SDOCD->2.0.ZU;2-3
Abstract
With a series of unsatured compounds, 3-methylene-2,4-chromanedione ca n behave as ambident heterodiene or as dienophile affording the hetero -Diels-Alder and Diels-Alder adducts, respectively. The structural ana lysis aimed at identifying the peculiar spectral parameters of these a dducts, has been performed via multidimensional NMR experiments suppor ted by Molecular Mechanics calculations.