2-Chloro-1,1,1-triethoxyethane → HCID 89924058, compound
Reaction equation
[NH2:1][C:2]1[CH:7]=[C:6]([Cl:8])[CH:5]=[CH:4][C:3]=1[NH:9][CH:10]1[CH2:14][N:13]([CH2:15][C:16]2[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[CH:18][CH:17]=2)[C:12](=[O:24])[CH2:11]1.[Cl:25][CH2:26][C:27](OCC)(OCC)OCC>>[Cl:8][C:6]1[CH:5]=[CH:4][C:3]2[N:9]([CH:10]3[CH2:14][N:13]([CH2:15][C:16]4[CH:21]=[CH:20][C:19]([O:22][CH3:23])=[CH:18][CH:17]=4)[C:12](=[O:24])[CH2:11]3)[C:27]([CH2:26][Cl:25])=[N:1][C:2]=2[CH:7]=1Participants
3
Conditions
- Temperature
- 80 °C
Procedure
A mixture of 4-[(2-amino-4-chlorophenyl)amino]-1-(4-methoxybenzyl)pyrrolidin-2-one (1.35 g, 3.91 mmol) and 2-chloro-1,1,1-triethoxyethane (10 mL) was stirred at 80° C. for 1 hour. The resulting mixture was concentrated in vacuo and the residue was purified by column chromatography (DCM: MeOH=20:1) to afford 4-[5-chloro-2-(chloromethyl)-1H-benzimidazol-1-yl]-1-(4-methoxybenzyl)pyrrolidin-2-one.
Workup
- concentrationThe resulting mixture was concentrated in vacuo
- customthe residue was purified by column chromatography (DCM: MeOH=20:1)
Sources & evidence
- ORD record
- ord-2452979e71964f2a9c66dcec56d237c5
- Source dataset
- uspto-grants-2015_12
- Patent number
- US09206191B2
Reaction notes
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