Cesium carbonate → 1-(4-Chlorobutoxy)-4-iodobenzene

HRID 1364225Notes

Reaction equation

HRID 1364225 reaction equation
[I:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Cs+].[Cs+].[Cl:15][CH2:16][CH2:17][CH2:18][CH2:19]I>C(#N)C>[Cl:15][CH2:16][CH2:17][CH2:18][CH2:19][O:8][C:5]1[CH:6]=[CH:7][C:2]([I:1])=[CH:3][CH:4]=1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 108944-IodophenolHCID 825271-Chloro-4-iodobutane

Product 1

HCID 581868981-(4-Chlorobutoxy)-4-iodobenzeneYield 99.2%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 4-iodophenol (1.0 g) in acetonitrile (10 mL), cesium carbonate (3.0 g) and 1-chloro-4-iodobutane (1.2 g) were added and the mixture was heated to 100° C., at which it was stirred for 4 hours. The reaction mixture was cooled to room temperature and filtered to remove insoluble materials, and the filtrate was concentrated under reduced pressure. The resulting residue was purified by NH-type silica gel column chromatography (eluting solvent: n-hexane:ethyl acetate=7:3 to 1:1) to give the titled compound (1.4 g, 99%) as a brown oil.

Workup

  1. temperatureThe reaction mixture was cooled to room temperature
  2. filtrationfiltered
  3. customto remove insoluble materials
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe resulting residue was purified by NH-type silica gel column chromatography (eluting solvent: n-hexane:ethyl acetate=7:3 to 1:1)

Sources & evidence

ORD record
ord-48b670b7956c47a3a06e9a73df8716fb
Source dataset
uspto-grants-2011_02
Patent number
US07888354B2

Reaction notes

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