HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 227300Generated: October 26, 2026
Potassium Carbonate → 1-(5-Chloro-2-nitrophenyl)-4-methylpiperazine
https://huagongshe.com/reaction/227300
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 1-Methylpiperazine | HCID 53167 | — |
| Reactant | 4-Chloro-2-fluoro-1-nitrobenzene | HCID 69691 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 1-(5-Chloro-2-nitrophenyl)-4-methylpiperazine | HCID 2829618 | — |
Reaction Steps
A mixture of 4-chloro-2-fluoro-nitrobenzene (28.5 mmol), 1-methylpiperazine (28.5 mmol) and K2CO3 (37.0 mmol) in DMF is stirred at 100° C. for 16 h and diluted with water and EtOAc. The phases are separated and the aqueous phase is extracted with EtOAc. The organic phase and the extracts are combined, washed sequentially with water and brine, dried over Na2SO4 and dried in vacuo. The resultant residue is chromatographed (silica gel, 10% methanol in EtOAc as eluent) to afford the title product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07560470B2 |
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| Source dataset | uspto-grants-2009_07 |
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| ORD ID | ord-a730efe6c8eb4414844be7365e25ce56 |
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| Source note | uspto-grants-2009_07 |
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