SCHEDULED MAINTENANCE
Although deoxybruceol is derived by heating the chromen (7) in pyridine, X-ray work shows that rearrangement has occurred and its structure must be revised from (2) to (3), whilst that of bruceol is sustained as (1); both (2) and (3) are synthesised by an alternative route.
M. J. Begley, L. Crombie, D. A. Slack and D. A. Whiting, J. Chem. Soc., Chem. Commun., 1976, 140 DOI: 10.1039/C39760000140
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