HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 349657Generated: October 25, 2026
Water → 5-(4-Methylpiperazin-1-yl)-2-nitroaniline
https://huagongshe.com/reaction/349657
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 1-Methylpiperazine | HCID 53167 | — |
| Reactant | 5-Chloro-2-nitroaniline | HCID 74218 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 5-(4-Methylpiperazin-1-yl)-2-nitroaniline | HCID 2760034 | 54.4% |
Reaction Steps
A mixture of 5-chloro-2-nitrophenylamine (2.5 g, 14 mmol), 1-methylpiperizine (3.2 mL, 30 mmol), and potassium carbonate (K2CO3) (2.0 g, 14 mmol) in dimethylformamide (DMF) (20 mL) was stirred at 120° C. for 18 h. The reaction mixture was cooled to room temperature and poured into water (150 mL). The precipitated crude product was collected by filtration, dried in vacuo, and purified by recrystallization from ethyl acetate (EtOAc) (75 mL) to yield yellow-green crystals (1.8 g, 54%). See, J. Med. Chem., 39:997 (1996).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07179912B2 |
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| Source dataset | uspto-grants-2007_02 |
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| ORD ID | ord-c5e3e4baf23b4f81ac13c108ef84a414 |
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| Source note | uspto-grants-2007_02 |
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