HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 736120Generated: October 30, 2026
Piperazine → 1-(2-Bromo-5-(trifluoromethyl)phenyl)piperazine
https://huagongshe.com/reaction/736120
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | 4-Bromo-3-fluorobenzotrifluoride | HCID 142414 | — |
| Solvent | Dimethylacetamide | HCID 31374 | — |
| Product | 1-(2-Bromo-5-(trifluoromethyl)phenyl)piperazine | HCID 59793644 | 37% |
Reaction Steps
A mixture of 2 g (8 mmol) 1-Bromo-2-fluoro-4-trifluoromethyl-benzene and 2.13 g (25 mmol) piperazine in 2 ml N,N-dimethylacetamide was heated to 100° C. for 2 h and subsequently all volatiles were removed under vacuum. The residue was purified by flash column chromatography on silica eluting with DCM/methanol/1% NH3 aq. to yield 0.765 g (37%) of the title compound as colourless oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07595314B2 |
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| Source dataset | uspto-grants-2009_09 |
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| ORD ID | ord-cdcc3f63b65e45189158f6df9b3a4f52 |
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| Source note | uspto-grants-2009_09 |
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