HuagongsheHuagongshe Chemistry Print Report · For research reference only
Piperazine → 2-[2-(5-Methyl-2-Phenyl-Oxazol-4-Yl)-Ethoxy]-6-(1-Piperazinyl)Pyrazine
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Piperazine | HCID 4837 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-(5-Methyl-2-phenyl-4-oxazolyl)ethanol | HCID 725585 | — |
| Reactant | 2-Chloro-6-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]pyrazine | HCID 18186828 | — |
| Product | 2-[2-(5-Methyl-2-Phenyl-Oxazol-4-Yl)-Ethoxy]-6-(1-Piperazinyl)Pyrazine | HCID 18186885 | — |
Reaction Steps
The title compound was prepared according to the procedure of example 50, step 2, starting from 2-chloro-6-[2-(5-methyl-2-phenyl-oxazol-4-yl)-ethoxy]pyrazine [2.90 g, 9.18 mmol; obtained according to the procedure of example 50, step 1, starting from 2-(5-methyl-2-phenyloxazol-4-yl)ethanol], piperazine (2.37 g, 27.5 mmol) and K2CO3 (1.27 g, 9.19 mmol) with the exception that the final filtration through alumina was omitted. The yield of the of the title compound was 2.09 g (62%) which was obtained as a light yellow oil that solidified when refrigerated. Purity 100% (HPLC). MS m/z 365 (M)+. HRMS m/z calcd for C20H23N5O2 (M)+ 365.1852, found 365.1855.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06593330B2 |
| Source dataset | uspto-grants-2003_07 |
| ORD ID | ord-9f12006a030b4032bc257f996a1f8289 |
| Source note | uspto-grants-2003_07 |