Dimethylformamide → (E)-9-chloro-1,2,3,4,5,6-hexahydro-6-(2-(4-methoxyphenyl)prop-1-enyl)-3-methylazepino[4,5-b]indole

HRID 1045617Notes

Reaction equation

HRID 1045617 reaction equation
[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[NH:7][C:6]3[CH2:11][CH2:12][N:13]([CH3:16])[CH2:14][CH2:15][C:5]=3[C:4]=2[CH:3]=1.CN(C=O)C.[O-]P([O-])([O-])=O.[K+].[K+].[K+].Br[CH:31]=[C:32]([C:34]1[CH:39]=[CH:38][C:37]([O:40][CH3:41])=[CH:36][CH:35]=1)[CH3:33]>>[Cl:1][C:2]1[CH:10]=[CH:9][C:8]2[N:7](/[CH:31]=[C:32](/[C:34]3[CH:35]=[CH:36][C:37]([O:40][CH3:41])=[CH:38][CH:39]=3)\[CH3:33])[C:6]3[CH2:11][CH2:12][N:13]([CH3:16])[CH2:14][CH2:15][C:5]=3[C:4]=2[CH:3]=1

Participants

5

Reactant 4

HCID 6228DimethylformamideHCID 62657Potassium Phosphate, TribasicHCID 685585079-Chloro-3-methyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indoleHCID 854087261-(1-Bromoprop-1-en-2-yl)-4-methoxybenzene

Product 1

HCID 59368163(E)-9-chloro-1,2,3,4,5,6-hexahydro-6-(2-(4-methoxyphenyl)prop-1-enyl)-3-methylazepino[4,5-b]indole

Procedure

9-Chloro-3-methyl-1,2,3,4,5,6-hexahydroazepino[4,5-b]indole (43 mg, 0.184 mmol) was dissolved in DMF (4 mL) Copper (I) iodide (4 mg, 0.0184 mmol) L-proline (4.2 mg, 0.037 mmol) and K3PO4 (78 mg, 0.37 mmol) were added and the reaction mixture was stirred for 10 min. at RT. 1-(1-Bromoprop-1-en-2-yl)-4-methoxybenzene (50 mg, 0.22 mmol) was added dropwise and the reaction mixture was purged with nitrogen. The reaction mixture was heated at 80° C. for overnight (prolonged heating in some cases was required). The DMF was evaporated under reduced pressure, the residue was diluted with water and the solid was filtered. The solid material was purified by silica gel chromatography (100-200 mesh). 1H NMR (DMSO-d6, Oxalate salt) δ (ppm): 7.60 (m, 3H), 7.10 (m, 2H), 6.98 (m, 3H), 3.80 (s, 3H), 3.60 (m, 4H), 3.10 (m, 4H), 2.82 (s, 3H), 1.80 (s, 3H).

Workup

  1. customthe reaction mixture was purged with nitrogen
  2. temperatureThe reaction mixture was heated at 80° C. for overnight (
  3. temperatureprolonged heating in some cases
  4. customThe DMF was evaporated under reduced pressure
  5. additionthe residue was diluted with water
  6. filtrationthe solid was filtered
  7. customThe solid material was purified by silica gel chromatography (100-200 mesh)

Sources & evidence

ORD record
ord-9a418b36039248818dc7facf80da7f75
Source dataset
uspto-grants-2013_10
Patent number
US08569287B2

Reaction notes

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