HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,2-Dichloroethane → (R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,2-Dichloroethane | HCID 11 | — |
| Reactant | Ammonium Hydroxide | HCID 14923 | — |
| Reactant | 1-Hydroxybenzotriazole hydrate | HCID 2796029 | — |
| Reactant | Boc-D-2-thienylalanine | HCID 7017898 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | (R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate | HCID 67776928 | 89.1% |
Reaction Steps
A solution of Boc-β-(2-thienyl)-D-alanine (504 mg, 1.86 mmol), HOBt hydrate (340 mg, 2.22 mmol) and EDC (460 mg, 2.39 mmol) in DMF (8 mL) was stirred at room temperature for 30 min. Conc. NH4OH (0.800 mL) was added. The mixture was stirred at room temperature for 20 h. Water and EtOAc were added. Organic phase was separated, washed with 5% NaHCO3, dried over Na2SO4, concentrated in vacuo to give (R)-tert-butyl 1-amino-1-oxo-3-(thiophen-2-yl)propan-2-ylcarbamate as a solid (448 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09359308B2 |
| Source dataset | uspto-grants-2016_06 |
| ORD ID | ord-e8ff171e6b674661976276a4613f3672 |
| Source note | uspto-grants-2016_06 |