Tetrahedron p. 4973 - 4980 (1984)
Update date:2022-08-03
Topics:
Berrier, C.
Gesson, J. P.
Jacquesy, J. C.
Renoux, A.
The ring-C aromatic analogue 4 of 4-androstene 3,17-dione and its 11 hydroxylated(methoxylated) derivatives 20a(b) were prepared by a practical synthetic route.The key steps of the sequence are achieved in superacid: the cyclisation of diarylethane 5a to phenanthrenone 17, and the hydroxylation by hydrogenperoxide of ketone 4 to phenol 20a.
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(1984)
