HuagongsheHuagongshe Chemistry Print Report · For research reference only
Isopropanol → Pyrazino[2,1-c][1,4]oxazine, octahydro-, (9aR)- (9CI)
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Isopropanol | HCID 3776 | — |
| Reactant | Sodium Sulfate | HCID 24436 | — |
| Reactant | (9aR)-Hexahydropyrazino[2,1-c][1,4]oxazin-4(3H)-one | HCID 16124470 | — |
| Reactant | Aluminium lithium hydride | HCID 21226445 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | Pyrazino[2,1-c][1,4]oxazine, octahydro-, (9aR)- (9CI) | HCID 18649033 | 73% |
Reaction Steps
To a solution of (R)-hexahydro-pyrazino[2,1-c][1,4]oxazin-4-one (60 mg, 0.39 mmol) in dioxane (5 mL) was added LiAlH4 (1.5 mL, 1M solution in THF). The resulting mixture was heated at 80° C. for 2.5 h before the addition of iPrOH (0.5 mL) followed by a saturated aqueous solution of Na2SO4 (3 mL). Further Na2SO4 was added and the resulting mixture filtered through celite, washing with EtOAc. The resulting residue was purified by NH2 column to give the title compound as an oil (40 mg, 73%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08293735B2 |
| Source dataset | uspto-grants-2012_10 |
| ORD ID | ord-0de7cf8cbd134b419f5ede457cf48a8c |
| Source note | uspto-grants-2012_10 |