HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1519554Generated: October 31, 2026
4-Nitrophenethyl bromide → 1,4-Bis[2-(4-nitrophenyl)ethyl]piperazine
https://huagongshe.com/reaction/1519554
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 4-Nitrophenethyl bromide | HCID 79266 | — |
| Reactant | 1-[2-(4-Nitrophenyl)ethyl]piperazine hydrochloride | HCID 66644006 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 1,4-Bis[2-(4-nitrophenyl)ethyl]piperazine | HCID 52337837 | — |
Reaction Steps
To a solution of 1-[2-(4-nitrophenyl)ethyl]piperazine hydrochloride (30 mg, 0.11 mmol) in DMF (2 mL) was added 1-(2-bromoethyl)-4-nitrobenzene (31 mg, 1.3 mmol) and TEA (46 uL, 0.33 mmol). The mixture was heated to 80° C. for 16 hours. LC showed some desired product at that point. The desired 1,4-bis[2-(4-nitrophenyl)ethyl]piperazine was purified by mass-directed HPLC. LC-MS (IE, m/z): 385 [M+1]+. (0.052 μM)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09073882B2 |
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| Source dataset | uspto-grants-2015_07 |
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| ORD ID | ord-8a79e3ec105c4f4388ce75a52946219b |
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| Source note | uspto-grants-2015_07 |
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