Acetic Anhydride → N-(2-(4-(2-chlorophenyl)-4H-1,2,4-triazol-3-yl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepin-8-yl)acetamide

HRID 627850Notes

Reaction equation

HRID 627850 reaction equation
Cl.[Cl:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[N:9]1[CH:13]=[N:12][N:11]=[C:10]1[C:14]1[S:28][C:17]2[C:18]3[CH:26]=[CH:25][C:24]([NH2:27])=[CH:23][C:19]=3[O:20][CH2:21][CH2:22][C:16]=2[CH:15]=1.[C:29](OC(=O)C)(=[O:31])[CH3:30]>C(Cl)Cl>[Cl:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[N:9]1[CH:13]=[N:12][N:11]=[C:10]1[C:14]1[S:28][C:17]2[C:18]3[CH:26]=[CH:25][C:24]([NH:27][C:29](=[O:31])[CH3:30])=[CH:23][C:19]=3[O:20][CH2:21][CH2:22][C:16]=2[CH:15]=1

Participants

4

Reactant 2

HCID 7918Acetic AnhydrideHCID 66899984HCID 66899984, compound

Product 1

HCID 44242166N-(2-(4-(2-chlorophenyl)-4H-1,2,4-triazol-3-yl)-4,5-dihydrobenzo[b]thieno[2,3-d]oxepin-8-yl)acetamideYield 39%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of 2-(4-(2-chlorophenyl)-4H-1,2,4-triazol-3-yl)-4,5-dihydro-benzo[b]thieno[2,3-d]oxepin-8-amine HCl salt (0.2 g, 0.464 mmol) in 10 ml of dried DCM was added TEA (0.32 mL, 2.3 mmol). The mixture was stirred at 0° C. for 20 min and 0.2 ml of acetic anhydride was added. After stirred for 10 min, the solution was quenched with water and evaporated to the crude product, which was purified by preparative TLC to give 115 (80 mg, 39%). 1H NMR (DMSO-d6, 400 MHz): δ 10.02 (s, 1H), 8.81 (s, 1H), 7.79-7.15 (m, 7H), 6.54 (s, 1H), 4.16 (t, J=4.8 Hz, 2H), 2.95 (t, J=4.8 Hz, 2H), 1.99 (s, 3H). MS: (ESI+) 437.1

Workup

  1. stirringAfter stirred for 10 min
  2. customthe solution was quenched with water
  3. customevaporated to the crude product, which
  4. customwas purified by preparative TLC

Sources & evidence

ORD record
ord-890aee4d086e4168b0162ef534024da0
Source dataset
uspto-grants-2016_04
Patent number
US09309265B2

Reaction notes

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