Reaction #70394

ord-107de71278fe451a958a6c889464c541

Reaction equation

C=C1CC2CCCC[C@]2(C)[C@H]2CC[C@@]3(C)[C@@H](CC45OCCOC43OCCO5)[C@H]12
17,17-bis(ethylendioxy)-7-methyleneandrostane
C=C1C[C@@H]2[C@H](CC[C@]3(C)C(=O)CC[C@@H]23)[C@@]2(C)CCC(=O)CC12
6-methyleneandrostane-3,17-dione
→
C=C1CC2CC(=O)CC[C@]2(C)[C@H]2CC[C@]3(C)C(=O)CC[C@H]3[C@H]12
title compound
Yield 87.0%
C=C1CC2CC(=O)CC[C@]2(C)[C@H]2CC[C@]3(C)C(=O)CC[C@H]3[C@H]12
7-Methyleneandrostane-3,17-dione
Yield 87.0%

Reactants

C=C1CC2CCCC[C@]2(C)[C@H]2CC[C@@]3(C)[C@@H](CC45OCCOC43OCCO5)[C@H]12
17,17-bis(ethylendioxy)-7-methyleneandrostane
C=C1C[C@@H]2[C@H](CC[C@]3(C)C(=O)CC[C@@H]23)[C@@]2(C)CCC(=O)CC12
6-methyleneandrostane-3,17-dione

Reagents

None

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    WashThe combined organic extracts were washed with H2O
  2. 2
    Dryingdried over Na2SO4
  3. 3
    Otherevaporated to dryness

Procedure

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).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08536160B2uspto-grants-2013_09