HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 334260Generated: October 31, 2026
Piperazine → 1-(2-Phenoxyphenyl)piperazine
https://huagongshe.com/reaction/334260
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | 1-Bromo-2-phenoxy-benzene | HCID 37483 | — |
| Reactant | Sodium t-butoxide | HCID 23676156 | — |
| Catalyst | Binap, (A+-)- | HCID 634876 | — |
| Catalyst | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | 1-(2-Phenoxyphenyl)piperazine | HCID 12996705 | 64.3% |
Reaction Steps
1-Bromo-2-phenoxybenzene (432 mg, 1.73 mmol), piperazine (299 mg, 3.47 mmol), Pd2(dba)3 (48 mg, 0.052 mmol), BINAP (54 mg, 0.087 mmol) and NaOt-Bu (249 mg, 2.60 mmol) were dissolved in toluene (10 mL) in a reaction vessel and refluxed at 100° C. for 20 hours. After the reaction was completed, the reaction mixture was diluted with EtOAc and filtered through Celite. The filtrate was concentrated under reduced pressure and the concentrate was purified by column chromatography (MC:mixture solution (MC:MeOH:H2O:NH3=80:20:1:1)=6:1) to obtain 283 mg of the target compound (1.11 mmol, 64.3%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08883796B2 |
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| Source dataset | uspto-grants-2014_11 |
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| ORD ID | ord-9054b7bb75124ffa982ebcd6d7142cc6 |
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| Source note | uspto-grants-2014_11 |
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