Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Sodium borohydride | HCID 4311764 | — |
| Reactant | 2,3-diethyl (2S,3S)-aziridine-2,3-dicarboxylate | HCID 10058275 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 25001714 | HCID 25001714 | 84% |
Reaction Steps
In a round bottom flask equipped with a magnetic stirring bar and a septum was placed (S,S) diethyl aziridine-2,3-dicarboxylate (1.87 g, 10 mmol) dissolved into 30 ml of EtOH. The vessel was cooled to 0° C. and NaBH4 (302.6 mg, 8 mmol) was added slowly. The reaction mixture was allowed to stir at 0° C. until the reaction was complete according to TLC (EtOAc, Rf=0.66), which was approximately 2 hours. The reaction was quenched by the addition of pH 7 phosphate buffer, and extracted three times with CH2Cl2. The combined organic layers were dried over Na2SO4 and concentrated under reduced pressure. The residue was purified by flash column chromatography (silica gel; gradient 8:2 EtOAc/hexanes—100% EtOAc) to afford the title compound in 84% yield as a pale yellow oil. 1H NMR (CDCl3, 200 MHz) δ: 4.22 (q, J=7.0 Hz, 2H), 3.82 (dd, J=12.4 Hz, 2.8 Hz, 1H), 3.48 (dd, J=12 Hz, 4.8 Hz, 1H), 2.46 (m, 2H), 1.50 (bs, 1H), 1.31 (t, J=7.0 Hz, 3H) ppm. 13C NMR (CDCl3, 50 MHz) δ: 172.2, 62.0, 61.5, 39.8, 32.7, 14.3 ppm. HRMS (ESI) [M+H]+ calcd. for C6H12NO3 146.0817, found 146.0820.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08143375B2 |
|---|
| Source dataset | uspto-grants-2012_03 |
|---|
| ORD ID | ord-c8ac6fbfe2ea4a76a14f3744860f6936 |
|---|
| Source note | uspto-grants-2012_03 |
|---|