Synthesis of (±)-eriobrucinol and regioisomeric monoterpenoid coumarins, using intramolecular cycloadditions
Abstract
Unambiguous syntheses of the three regioisomers (8), (13), and (16), of the eriobrucinol structure, are reported. The (±)-cyclol (8) is spectrally identical with natural (–)-eriobrucinol from Eriostemon brucei, thus confirming Jefferies and Worth's structural proposal by synthesis.
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