Heterocycles · 1988 · 40 citations · 0 references
Natural SciencesChemistryMedicinal ChemistryOrganic ChemistrySpectroscopyStructure-activity RelationshipsCircular Dichroism SpectroscopyRetrosynthetic AnalysisAbsolute Configuration AssignmentAbsolute Configuration DeterminationChiral Analysis By SpectroscopyChirality DeterminationCis-trans IsomerismConfiguration At Chiral CentersStereochemical Analysis By X-ray Crystallography
Absolute configuration of optically active Diels-Alder type adducts from the Morus root bark, which are regarded as adducts of chalcones and dehydroprenylphenols, were determined on the basis of X-ray crystallographic analysis and the cd spectra.Absolute configuration of the chiral centers on the methylcyclohexene ring in the cis-trans adducts was established to be 21.