Methyl iodide → 8-bromo-N-(2-chloro-4-(dimethylcarbamoyl)phenyl)-N-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamide

HRID 84518Notes

Reaction equation

HRID 84518 reaction equation
[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[C:11]3[S:12][C:13]([C:15]([NH:17][C:18]4[CH:23]=[CH:22][C:21]([C:24](=[O:28])[N:25]([CH3:27])[CH3:26])=[CH:20][C:19]=4[Cl:29])=[O:16])=[CH:14][C:10]=3[CH2:9][CH2:8][O:7][C:6]=2[CH:30]=1.[C:31]([O-])([O-])=O.[Cs+].[Cs+].CI>CN(C=O)C>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[C:11]3[S:12][C:13]([C:15]([N:17]([C:18]4[CH:23]=[CH:22][C:21]([C:24](=[O:28])[N:25]([CH3:27])[CH3:26])=[CH:20][C:19]=4[Cl:29])[CH3:31])=[O:16])=[CH:14][C:10]=3[CH2:9][CH2:8][O:7][C:6]=2[CH:30]=1

Participants

5

Reactant 3

HCID 6328Methyl iodideHCID 10796Cesium carbonateHCID 568341578-bromo-N-(2-chloro-4-(dimethylcarbamoyl)phenyl)-4,5-dihydro-benzo[b]thieno[2,3-d]oxepine-2-carboxamide

Product 1

HCID 568341588-bromo-N-(2-chloro-4-(dimethylcarbamoyl)phenyl)-N-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamideYield 99%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To solution of 8-bromo-N-(2-chloro-4-(dimethylcarbamoyl)phenyl)-4,5-dihydro-benzo[b]thieno[2,3-d]oxepine-2-carboxamide (29.0 g, 57.3 mmol), Cs2CO3 (37.40 g, 114.7 mmol) in DMF (600 mL), CH3I (30 mL, 479.8 mmol) was slowly added. The reaction mixture was stirred at room temperature overnight. Concentration removed about 200 mL of DMF, and then water (100 mL) was added to the mixture. The resulting precipitate was filtered, washed with water, dried to give 8-bromo-N-(2-chloro-4-(dimethylcarbamoyl)phenyl)-N-methyl-4,5-dihydrobenzo[b]thieno[2,3-d]oxepine-2-carboxamide (29.50 g, yield: 99%). ESI-MS: δ 19.4. 1H NMR (DMSO-d6, 400 MHz): δ7.72-7.68 (m, 2H, ArH), 7.52-7.49 (m, 1H, ArH), 7.30-7.20 (m, 3H, ArH), 6.76 (s, 1H, ═CH), 4.19 (s, 2H, CH2), 3.29 (s, 3H, CH3), 3.00 (s, 3H, CH3), 2.96 (s, 2H, CH2), 2.93 (s, 3H, CH3).

Workup

  1. concentrationConcentration
  2. customremoved about 200 mL of DMF
  3. additionwater (100 mL) was added to the mixture
  4. filtrationThe resulting precipitate was filtered
  5. washwashed with water
  6. customdried

Sources & evidence

ORD record
ord-22cc80339f064207bddd81727227532e
Source dataset
uspto-grants-2014_09
Patent number
US08846762B2

Reaction notes

Loading…