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Benzoyl chloride → N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}benzamide

HRID 2103529
Notes
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Reaction equation

HRID 2103529 reaction equation
N12CCCN=C1CCCCC2.Cl.[NH2:13][CH2:14][C:15]1[CH:23]=[CH:22][CH:21]=[C:20]2[C:16]=1[C:17](=[O:33])[N:18]([CH:25]1[CH2:30][CH2:29][C:28](=[O:31])[NH:27][C:26]1=[O:32])[C:19]2=[O:24].[C:34](Cl)(=[O:41])[C:35]1[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=1>CC#N>[O:32]=[C:26]1[CH:25]([N:18]2[C:17](=[O:33])[C:16]3[C:20](=[CH:21][CH:22]=[CH:23][C:15]=3[CH2:14][NH:13][C:34](=[O:41])[C:35]3[CH:40]=[CH:39][CH:38]=[CH:37][CH:36]=3)[C:19]2=[O:24])[CH2:30][CH2:29][C:28](=[O:31])[NH:27]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 7412Benzoyl chlorideHCID 811841,8-Diazabicyclo(5.4.0)undec-7-eneHCID 219885254-(aminomethyl)-2-(2,6-dioxopiperidin-3-yl)-2,3-dihydro-1H-isoindole-1,3-dione hydrochloride

Product 1

HCID 10178522N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}benzamideYield 76%

Reagents, catalysts & solvents 1

HCID 6342
Acetonitrile
Solvent

Procedure

1,8-Diazabicyclo[5,4,0]undec-7-ene (0.62 g, 4.08 mmol) was added to a stirred suspension of 4-(aminomethyl)-2-(2,6-dioxo(3-piperidyl))isoindoline-1,3-dione hydrochloride (0.6 g, 1.85 mmol) in CH3CN (50 mL). After stirring for 20 min, benzoyl chloride (0.31 g, 2.22 mmol) was added. The mixture was stirred at room temperature for 17 hours. The solvent was removed in vacuo and the residue was dissolved in CH2Cl2 (70 mL). The CH2Cl2 solution was washed with H2O (30 mL), brine (30 mL) and dried (MgSO4). The solvent was removed and the residue was purified by chromatography (SiO2, CH2Cl2:EtOAC 6:4) to give N-{[2-(2,6-dioxo(3-piperidyl))-1,3-dioxoisoindolin-4-yl]methyl}benzamide (0.55 g, 76%) as a white solid: mp 227-229° C.; 1H NMR (DMSO-d6) δ 11.16 (s, 1H), 9.16 (t, J=5.7 Hz, 1H), 7.95-7.72 (m, 5H), 7.60-7.46 (m, 3H), 5.22-5.12 (dd, J=5.4 and 12.8 Hz, 1H), 4.96 (d, J=5.7 Hz, 2H), 2.98-2.85 (m, 1H), 2.65-2.50 (m, 2H), 2.11-2.06 (m, 1H); 13C NMR (DMSO-d6) δ 172.72, 169.80, 167.54, 166.96, 166.60, 139.34, 134.77, 133.92, 133.02, 131.52, 131.42, 128.34, 127.28, 127.12, 121.83, 48.88, 38.32, 30.93, 21.98; Anal. Calcd. For C21H17N3O5: C, 64.45; H, 4.38; N, 10.74. Found: C, 64.47; H, 4.50; N, 10.34.

Workup

  1. stirringThe mixture was stirred at room temperature for 17 hours
  2. customThe solvent was removed in vacuo
  3. dissolutionthe residue was dissolved in CH2Cl2 (70 mL)
  4. washThe CH2Cl2 solution was washed with H2O (30 mL), brine (30 mL)
  5. dry with materialdried (MgSO4)
  6. customThe solvent was removed
  7. customthe residue was purified by chromatography (SiO2, CH2Cl2:EtOAC 6:4)

Sources & evidence

ORD record
ord-915d01eaa0dc41f29efde9c14156563f
Source dataset
uspto-grants-2009_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07576104B2

Reaction notes

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