Potassium Carbonate → 4-[(6-Bromohexyl)oxy]benzonitrile

HRID 1722757Notes

Reaction equation

HRID 1722757 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([OH:9])=[CH:5][CH:4]=1)#[N:2].C(=O)([O-])[O-].[K+].[K+].[Br:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22]Br>[I-].[Na+].CC(C)=O>[Br:16][CH2:17][CH2:18][CH2:19][CH2:20][CH2:21][CH2:22][O:9][C:6]1[CH:7]=[CH:8][C:3]([C:1]#[N:2])=[CH:4][CH:5]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 123681,6-DibromohexaneHCID 130194-Cyanophenol

Product 1

HCID 134508844-[(6-Bromohexyl)oxy]benzonitrileYield 70.9%

Reagents, catalysts & solvents 2

HCID 5238Sodium IodideCatalystHCID 180AcetoneSolvent

Procedure

A mixture of 23.8 g (0.2 mole) 4-cyanophenol, 55.3 g (0.4 mole milled potassium carbonate, 97.6 g 1,6-dibromohexane, 0.5 g sodium iodide and 750 ml acetone was stirred at reflux for two days. The solid was filtered off and the filtrate concentrated in vacuo. The residue was partitioned between water and methylene dichloride, and the organic phase was dried and concentrated. The residue was distilled to give 40 g 4-(6-bromohexyloxy)-benzonitrile, b.p. 150-160° C.(0.05 mm).

Workup

  1. temperatureat reflux for two days
  2. filtrationThe solid was filtered off
  3. concentrationthe filtrate concentrated in vacuo
  4. customThe residue was partitioned between water and methylene dichloride
  5. customthe organic phase was dried
  6. concentrationconcentrated
  7. distillationThe residue was distilled

Sources & evidence

ORD record
ord-2fe5d04014e24ed7ada9b659f7a203b3
Source dataset
uspto-grants-1989_08
Patent number
US04857539

Reaction notes

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