Réaction #70378

ord-a861e7c5eaf84d5489ac58f3837896e1

Équation de réaction

CO/N=C1\C[C@@H]2[C@H](CC[C@@]3(C)[C@H]2CC24OCCOC23OCCO4)[C@@]2(C)CCCCC12
17,17-bis(ethylendioxy)-6-(E)-methoxyiminoandrostane
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
→
CO/N=C1\C[C@@H]2[C@H](CC[C@]3(C)C(=O)CC[C@@H]23)[C@@]2(C)CCC(=O)CC12
title compound
Rendement 70.0%
CO/N=C1\C[C@@H]2[C@H](CC[C@]3(C)C(=O)CC[C@@H]23)[C@@]2(C)CCC(=O)CC12
6-(E)-Methoxyiminoandrostane-3,17-dione
Rendement 70.0%

Réactifs

CO/N=C1\C[C@@H]2[C@H](CC[C@@]3(C)[C@H]2CC24OCCOC23OCCO4)[C@@]2(C)CCCCC12
17,17-bis(ethylendioxy)-6-(E)-methoxyiminoandrostane
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

Réactifs

Aucun

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    LavageThe combined organic extracts were washed with H2O
  2. 2
    Séchagedried over Na2SO4
  3. 3
    Autreevaporated to dryness

Mode opératoire

The title compound II-ao was prepared in 70% yield from 3,3:17,17-bis(ethylendioxy)-6-(E)-methoxyiminoandrostane by the procedure described above for the preparation of 6-methyleneandrostane-3,17-dione (II-ac, Prepn. 13). The combined organic extracts were washed with H2O, dried over Na2SO4 and evaporated to dryness. 1H-NMR (300 MHz, acetone-d6, ppm from TMS): δ 3.78 (3H, s), 3.37 (1H, dd), 2.68-1.14 (19H, m), 1.01 (3H, s), 0.98 (3H, s).

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US08536160B2uspto-grants-2013_09