1-Bromo-3-chloropropane → HCID 57675746, compound

HRID 491018Notes

Reaction equation

HRID 491018 reaction equation
[CH3:1][C:2]1[N:3]([C:11]2[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=2)[C:4]2[C:9]([CH:10]=1)=[CH:8][CH:7]=[CH:6][CH:5]=2.Br[CH2:19][CH2:20][CH2:21][Cl:22].C(=O)([O-])[O-].[K+].[K+]>CC(=O)CC>[Cl:22][CH2:21][CH2:20][CH2:19][O:17][C:14]1[CH:15]=[CH:16][C:11]([N:3]2[C:4]3[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=3)[CH:10]=[C:2]2[CH3:1])=[CH:12][CH:13]=1

Participants

5

Reactant 3

HCID 80061-Bromo-3-chloropropaneHCID 11430Potassium CarbonateHCID 576757604-(2-Methylindol-1-yl)phenol

Product 1

HCID 57675746HCID 57675746, compoundYield 56%

Reagents, catalysts & solvents 1

HCID 6569Methyl Ethyl KetoneSolvent

Procedure

4-(2-Methylindol-1-yl)phenol (0.36 mmol) was heated at 70° C. in 2-butanone (3 mL) with 1-bromo-3-chloropropane (0.107 mL, 1.08 mmol) and potassium carbonate (0.15 g, 1.08 mmol) overnight. The solvent was evaporated. The resulting residue was diluted with ethyl acetate and washed with saturated ammonium chloride solution. The aqueous layer was back-extracted with ethyl acetate. The organic extracts were dried over MgSO4 and concentrated. SiO2 chromatography with 5-20% ethyl acetate/hexanes gave the desired product as a colorless oil, 60 mg (56% yield, 2 steps). LC-MS (C18H18ClNO calc'd 299) m/z 300, 302 (M+H).

Workup

  1. customThe solvent was evaporated
  2. additionThe resulting residue was diluted with ethyl acetate
  3. washwashed with saturated ammonium chloride solution
  4. extractionThe aqueous layer was back-extracted with ethyl acetate
  5. dry with materialThe organic extracts were dried over MgSO4
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-a16b18343ba841a08ffdba2997456fdc
Source dataset
uspto-grants-2009_05
Patent number
US07528262B2

Reaction notes

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