Tetrahedron p. 3653 - 3660 (1981)
Update date:2022-08-03
Topics:
Chatterjee
Raychaudhuri
Chatterjee
Birch reductions of 4,6-dimethoxy-1-naphthylalkyl ketones 1 provided in fair to good yields the demethoxylated products, 6-methoxy-1-naphthylalkyl ketones 2(a-g), not easily accessible by other procedures. Autooxidation of these ketones in basic medium afforded the diketones 6(a-c), the acid 2h, and interestingly the phenol 5. Extension of this reduction to the related tricyclic ketone 8 afforded 9a, the phenolic ketone 9b; and significantly the dihydrocoumarin derivative 10 as a result of autooxidation of 9a. The mechanisms for demethoxylation and autooxidation have been discussed.
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