HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1769040Generated: October 31, 2026
Dimethylformamide → 1-[(4-Cyanobutyl)-1H-benzimidazol-2-yl][1-(4-cyanobutyl)-4-piperidinyl]methanone
https://huagongshe.com/reaction/1769040
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 5-Bromopentanenitrile | HCID 79435 | — |
| Reactant | 1-[(4-cyanobutyl)-1H-benzimidazol-2-yl][1-(4-piperidinyl)]methanone | HCID 18946518 | — |
| Solvent | Water | HCID 962 | — |
| Product | 1-[(4-Cyanobutyl)-1H-benzimidazol-2-yl][1-(4-cyanobutyl)-4-piperidinyl]methanone | HCID 18946515 | — |
Reaction Steps
Mix 1-[(4-cyanobutyl)-1H-benzimidazol-2-yl][1-(4-piperidinyl)]methanone (4.0 g, 12.91 mmol), 5-bromovaleronitrile (2.5 g, 15.3 mmol), potassium carbonate (5.29 g, 38.25 mmol) and dimethylformamide (100 mL). Stir and heat at 90° C. overnight. Allow to cool to room temperature, dilute with water and extract with ethyl acetate (2×). Wash the combined organic phases with water (3×), then brine and dry (MgSO4). Evaporate the solvent in vacuo and purify by chromatography to give the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05380731 |
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| Source dataset | uspto-grants-1995_01 |
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| ORD ID | ord-34d4d0fe5e6b4b46bf5834e7d6a7afb2 |
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| Source note | uspto-grants-1995_01 |
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