Potassium Iodide → 4-{6-[4-(2-Ethoxyethoxy)phenyl]hexyl}-3,5-heptanedione

HRID 1680759Notes

Reaction equation

HRID 1680759 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][C:5]([CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH:14]([C:19](=[O:22])[CH2:20][CH3:21])[C:15](=[O:18])[CH2:16][CH3:17])=[CH:4][CH:3]=1.[CH2:23]([O:25][CH2:26][CH2:27]Br)[CH3:24].C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CC(C)=O>[CH2:23]([O:25][CH2:26][CH2:27][O:1][C:2]1[CH:3]=[CH:4][C:5]([CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH:14]([C:15](=[O:18])[CH2:16][CH3:17])[C:19](=[O:22])[CH2:20][CH3:21])=[CH:6][CH:7]=1)[CH3:24]

Participants

6

Reactant 4

HCID 4875Potassium IodideHCID 11430Potassium CarbonateHCID 611412-Bromoethyl ethyl etherHCID 5143233,5-Heptanedione, 4-[6-(4-hydroxyphenyl)hexyl]-

Product 1

HCID 234557264-{6-[4-(2-Ethoxyethoxy)phenyl]hexyl}-3,5-heptanedione

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

A mixture of 3.9 g. of 4-[6-(4-hydroxyphenyl)hexyl]-3,5-heptanedione, 12 g. of 2-bromoethyl ethyl ether, 4 g. of potassium carbonate and 1 g. of potassium iodide in 40 ml. of acetone was heated at reflux for 48 hours and then allowed to stand at room temperature for three days. The reaction mixture was then filtered and concentrated to remove the solvent. The residue was distilled at 200°-205° C. (0.001 mm.) to give 4-{6-[4-(2-ethoxyethoxy)phenyl]hexyl}-3,5-heptanedione as a light yellow oil.

Workup

  1. additionA mixture of 3.9 g
  2. temperatureat reflux for 48 hours
  3. filtrationThe reaction mixture was then filtered
  4. concentrationconcentrated
  5. customto remove the solvent
  6. distillationThe residue was distilled at 200°-205° C. (0.001 mm.)

Sources & evidence

ORD record
ord-806f18b606bd4d17b63d1b83b2b0dcef
Source dataset
uspto-grants-1981_06
Patent number
US04275201

Reaction notes

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