(3-Bromopropyl)benzene → HCID 22396651, compound

HRID 2306996Notes

Reaction equation

HRID 2306996 reaction equation
[H-].[K+].[Cl:3][C:4]1[C:5]([Cl:25])=[CH:6][C:7]2[C:8]3[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:24])([CH3:23])[CH3:22])=[O:19])[CH2:14][CH2:13][C:9]=3[NH:10][C:11]=2[CH:12]=1.Br[CH2:27][CH2:28][CH2:29][C:30]1[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1>CN(C=O)C>[Cl:3][C:4]1[C:5]([Cl:25])=[CH:6][C:7]2[C:8]3[CH2:17][CH2:16][N:15]([C:18]([O:20][C:21]([CH3:22])([CH3:24])[CH3:23])=[O:19])[CH2:14][CH2:13][C:9]=3[N:10]([CH2:27][CH2:28][CH2:29][C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)[C:11]=2[CH:12]=1

Participants

5

Reactant 3

HCID 12503(3-Bromopropyl)benzeneHCID 82127Potassium hydrideHCID 22396667HCID 22396667, compound

Product 1

HCID 22396651HCID 22396651, compoundYield 79.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Potassium hydride (45 mg, 1.1 mmol) was added to a solution of tert-butyl 8,9-dichloro-1,4,5,6-tetrahydroazepino[4,5-b]indole-3(2H)-carboxylate (0.20 g, 0.56 mmol) in DMF (1.0 mL). After 15 min, 1-bromo-3-phenylpropane (0.13 mL, 0.86 mmol) was added. After 5 h, the reaction was quenched with saturated aqueous NH4Cl (10 mL) and extracted with CH2Cl2 (3×10 mL). The combined organic extracts were washed with brine, dried over Na2SO4, decanted, and concentrated. The crude product was purified by column chromatography (Biotage, 40S) with heptane/EtOAc (3:1) to give 0.21 g (78%) of a yellow solid: mp 119-124° C.; IR (diffuse reflectance) 2980, 2973, 2941, 2932, 1686, 1478, 1462, 1417, 1365, 1247, 1178, 1160, 1112, 855, 699 cm−1; MS (EI) m/z 472 (M+), 416, 227, 226, 224, 211, 188, 153, 115, 90, 56; Anal. Calcd for C26H30Cl2N2O2: C, 65.96; H, 6.39; N, 5.92; found: C, 66.01; H, 6.47; N, 5.82.

Workup

  1. waitAfter 5 h
  2. customthe reaction was quenched with saturated aqueous NH4Cl (10 mL)
  3. extractionextracted with CH2Cl2 (3×10 mL)
  4. washThe combined organic extracts were washed with brine
  5. dry with materialdried over Na2SO4
  6. customdecanted
  7. concentrationconcentrated
  8. customThe crude product was purified by column chromatography (Biotage, 40S) with heptane/EtOAc (3:1)

Sources & evidence

ORD record
ord-4cab4604c6e44897a0c9af66ced2790b
Source dataset
uspto-grants-2004_12
Patent number
US06828314B2

Reaction notes

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