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

HRID 2078885
Notes
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Reaction equation

HRID 2078885 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
ParticipantsProcedureWorkupSources & evidenceReaction notes

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 6228
Dimethylformamide
Solvent

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: 519.4. 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-8e20febd78f3426da66d9fb0df201e1e
Source dataset
uspto-grants-2011_04
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07928248B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes