Triethylamine → HCID 22482228, compound

HRID 1280447Notes

Reaction equation

HRID 1280447 reaction equation
[Br:1][CH:2]([CH3:12])[CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8](I)=[CH:7][CH:6]=1.[CH2:13]([OH:17])[CH2:14][C:15]#[CH:16].CCN(CC)CC>ClCCl.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Br:1][CH:2]([CH3:12])[CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([C:16]#[C:15][CH2:14][CH2:13][OH:17])=[CH:7][CH:6]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 135663-Butyn-1-OLHCID 22482249HCID 22482249, compound

Product 1

HCID 22482228HCID 22482228, compoundYield 31.7%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 6344DichloromethaneSolvent

Procedure

To a solution of 4-(2-Bromopropoxy)-1-iodobenzene (10 g, 29 mmol), 3-butyn-1-ol (26 mL, 37 mmol), Cul (980 mg, 5.2 mmol) and dichlorobis(triphenylphosphine)palladium(II) (3.6 g, 5.2 mmol) in dichloromethane (40 mL) was added Et3N (6.0 mL, 44 mmol) dropwise. The reaction was stirred overnight at room temperature under Ar. The solvent was evaporated under reduced pressure and ethyl acetate was added to dissolve the compound, the solution was filtered over celite to remove most of the Pd. The crude product was purified by silica gel chromatography, eluted with hexane/ethyl acetate (2:1). 2.6 g of the title compound were obtained as a light brown solid.

Workup

  1. customThe solvent was evaporated under reduced pressure and ethyl acetate
  2. additionwas added
  3. dissolutionto dissolve the compound
  4. filtrationthe solution was filtered over celite
  5. customto remove most of the Pd
  6. customThe crude product was purified by silica gel chromatography
  7. washeluted with hexane/ethyl acetate (2:1)

Sources & evidence

ORD record
ord-a493f642695045f091f9f879b8c3e568
Source dataset
uspto-grants-2002_09
Patent number
US06451801B1

Reaction notes

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