Stereoselective hetero-Diels–Alder react
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Anne Giraud; Patrice Vanelle; Luc Giraud
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Article
📅
1999
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John Wiley and Sons
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English
⚖ 119 KB
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The proton and carbon spectra of chromane derivatives were completely assigned by the use of 1H, 13C and 2D NMR spectroscopy, including NOESY and 2D INADEQUATE. The unambiguous conÐgurational assignments of all regioisomers were achieved via 2D NOESY. The structure of the regioisomer 7A was conÐrmed