HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → HCID 59336155, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | 2,3-Dichloropyrazine | HCID 78575 | — |
| Reactant | Glycine ethyl ester, hydrochloride | HCID 2723640 | — |
| Solvent | Triethylamine | HCID 8471 | — |
| Product | HCID 59336155 | HCID 59336155 | 15% |
Reaction Steps
To an ethanol solution (10 mL) of 2,3-dichloropyrazine (1.0 g), glycine ethyl ester hydrochloride (940 mg) and triethylamine (1.9 mL) were added and the mixture was irradiated with microwave (150° C., 10 min). The reaction mixture was concentrated under reduced pressure. To the resulting residue, a saturated aqueous sodium bicarbonate solution was added and the product was extracted with chloroform. The organic layer was dried over sodium sulfate and concentrated under reduced pressure. The resulting residue was purified by amino-coated silica gel (Fuji Sylysia Chemical Ltd.; NH-DM1020) column chromatography (hexane:ethyl acetate=10:1) to give 212 mg (15% yield) of the desired product.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09139559B2 |
| Source dataset | uspto-grants-2015_09 |
| ORD ID | ord-14c5b51c49a148cfad90233994cfecf1 |
| Source note | uspto-grants-2015_09 |