Réaction #1077975

ord-c5fff817438c4d5c9d427af5bcaa9e31

Équation de réaction

CC12CC3CC(C)(C1)CC(Br)(C3)C2
3,5-dimethyl-1-bromoadamantane
CC(=O)[O-].[K+]
potassium acetate
CC(=O)OC12CC3CC(C)(CC(C)(C3)C1)C2
desired product
CC(=O)OC12CC3CC(C)(CC(C)(C3)C1)C2
3,5-Dimethyl-1-adamantyl Acetate

Solvants

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Extractionextracted with 3×10 mL of diethyl ether
  2. 2
    LavageThe combined ether extracts are washed with saturated aqueous sodium bicarbonate
  3. 3
    Séchagedried over sodium sulfate
  4. 4
    AutreThe solvent is removed under vacuum

Mode opératoire

2.486 (10.2 mmoles) of 3,5-dimethyl-1-bromoadamantane is refluxed for 16 hours with 2.034 g (20.7 mmoles) of potassium acetate in 10 mL of acetic acid. The solution is poured over 100 grams of ice, allowed to melt, and extracted with 3×10 mL of diethyl ether. The combined ether extracts are washed with saturated aqueous sodium bicarbonate followed by saturated aqueous sodium chloride, then dried over sodium sulfate. The solvent is removed under vacuum, yielding 1.521 (67%) of the desired product, a colorless oil. TLC: Rf=0.68 (silica plate: eluant hexane 90%, ethyl acetate 10%). 1HNMR (CDCl3, 500 Mhz): 0.858 (s, 6H), 1.115 (d, 2H, J=12.4 Hz), 1.177 (d, 2H, J=12.4 Hz), 1.260 (d, 2H, J=12.3 Hz), 1.367 (d, 2H, J=12.3 Hz), 1.714 (d, 2H, J=11.6 Hz), 1.766 (d, 2H, J=11.6 Hz), 1.939 (s, 2H), 1.976 (s, 3H), 2.191 (m, 1H).

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US06462064B1uspto-grants-2002_10