HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1473347Generated: October 25, 2026
1-Methylpiperazine → Piperazine, 1-[2-bromo-5-(trifluoromethyl)phenyl]-4-methyl-
https://huagongshe.com/reaction/1473347
Participants
| Role | Name | HCID | Charge |
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| Reactant | 1-Methylpiperazine | HCID 53167 | — |
| Reactant | 4-Bromo-3-fluorobenzotrifluoride | HCID 142414 | — |
| Product | Piperazine, 1-[2-bromo-5-(trifluoromethyl)phenyl]-4-methyl- | HCID 86687472 | — |
Reaction Steps
A microwave vial was charged with 1-methylpiperazine (1.371 ml, 12.35 mmol) and 4-bromo-3-fluorobenzotrifluoride (1.000 ml, 4.12 mmol), and was heated under microwave irradiation at 180° C. for 90 minutes. The reaction was concentrated under a vacuum, and the solids were then filtered and washed with DCM (the solids contained minor amounts of product but were disposed of). The filtrate was then concentrated under a vacuum to yield 1-(2-bromo-5-(trifluoromethyl)phenyl)-4-methylpiperazine. The material was carried forward without further purification. m/z (ESI) 323.0 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09012443B2 |
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| Source dataset | uspto-grants-2015_04 |
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| ORD ID | ord-ae73dd8efade4d2e897a6ae0a7f9723a |
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| Source note | uspto-grants-2015_04 |
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