Tetrahedron p. 5895 - 5906 (1989)
Update date:2022-07-30
Topics:
Lai, Steven M. F.
Orchison, Jack J. A.
Whiting, Donald A.
The (+)-cis-chromanochromanones (2) and (3), respresenting the basic ring system of the natural insecticide rotenone, have been synthesised by a general procedure; the key step is 4-aroylation of the 4-(phenyl-sulphonyl)chromans (7; Z=SO2Ph).
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