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ChemInform Abstract: Acid-Catalysed Dimerisation of Neolignans from Ratanhia. Assignment of Epimeric Configuration and Conformation of the Resulting Indanofuran Derivatives by 1H NMR Spectroscopy.
First published: September 11, 1990
Abstract
Acid treatment of ratanhiaphenol II (I) affords the isoratanhiaphenols A-D (II) + (III) in a ratio of ca. 50:10:25:15.
ChemInform Abstract
Acid treatment of ratanhiaphenol II (I) affords the isoratanhiaphenols A-D (II) + (III) in a ratio of ca. 50:10:25:15. Acid dimerisation of conocarpan (IV), however, gives only an inseparable mixture of epimers (Va + b). The dimers show lower antibacterial activity than that of the parent compounds (I) and (IV).
