HCID 67536381, compound → 7-Methyleneandrostane-3,17-dione

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Reaction Steps

The title compound II-aw was prepared in 87% yield from 3,3:17,17-bis(ethylendioxy)-7-methyleneandrostane by the procedure described above for the preparation of 6-methyleneandrostane-3,17-dione (I-ac, Prepn. 13). The combined organic extracts were washed with H2O, dried over Na2SO4 and evaporated to dryness. 1H-NMR (300 MHz, DMSO-d6, ppm from TMS): δ 4.70 (1H, m), 4.62 (1H, m), 2.20-1.10 (20H, m), 1.00 (3H, s), 0.88 (3H, s).

Provenance & Evidence