HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 912810Generated: October 25, 2026
Piperazine → 1-(3-Bromopyridin-2-yl)piperazine
https://huagongshe.com/reaction/912810
Participants
| Role | Name | HCID | Charge |
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| Reactant | Piperazine | HCID 4837 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 3-Bromo-2-chloropyridine | HCID 693324 | — |
| Product | 1-(3-Bromopyridin-2-yl)piperazine | HCID 13298529 | — |
Reaction Steps
A mixture of 3-bromo-2-chloropyridine (0.96 g, 5 mmol, Aldrich), piperazine (0.86 g, 10 mmol, Aldrich) and N,N-diisopropylethylamine (1 mL, 5.8 mmol, Aldrich) was heated in a microwave synthesizer for 40 min at 200° C. The reaction mixture was concentrated and the residue was purified by column chromatography on silica gel, eluting with 10% MeOH in dichloromethane to give the title compound as a white amorphous solid. MS (ESI, pos. ion) m/z: 242 (M+1).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08026241B2 |
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| Source dataset | uspto-grants-2011_09 |
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| ORD ID | ord-624b6e27cdbb47519691f5ddf39d1af8 |
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| Source note | uspto-grants-2011_09 |
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