HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 493321Generated: October 30, 2026
Potassium Carbonate → HCID 22036329, compound
https://huagongshe.com/reaction/493321
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2,3-Dichloropyrazine | HCID 78575 | — |
| Reactant | 1-Benzyl-3-methylpiperazine | HCID 2727520 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 22036329 | HCID 22036329 | 28% |
Reaction Steps
A mixture of 2,3-dichloropyrazine (0.332 g, 2.23 mmol), 1-benzyl-3-methylpiperazine* (0.423 g, 2.23 mmol), and K2CO3 (0.339 g, 2.45 mmol) in acetonitrile (2.5 mL) was stirred at 115° C. for 17 h in a sealed tube. The reaction mixture was diluted with ether, filtered, and concentrated. The brownish oily residue was purified by chromatography on silica gel using n-hexane/EtOAc (7:3) as eluent to give 0.19 g (28%) of the title product as a viscous oil that was sufficiently pure for the next step.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07534794B2 |
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| Source dataset | uspto-grants-2009_05 |
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| ORD ID | ord-f07aaa3afcd3483fb30e5cc4d49ba8d2 |
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| Source note | uspto-grants-2009_05 |
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