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 | 90.3% |
Reaction Steps
A solution of N-Boc-β-(2-thienyl)-D-alanine (504 mg, 1.86 mmol), HOBt monohydrate (340 mg, 2.22 mmol) and EDC (460 mg, 2.39 mmol) in DMF (6 mL) was stirred at room temperature for 1 h, conc. NH4OH (0.600 mL, ca. 8.40 mmol) was added. The mixture was stirred for 18 h. Water and EtOAc were added. The 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 (454 mg)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09359375B2 |
| Source dataset | uspto-grants-2016_06 |
| ORD ID | ord-853796d354e14099b53e1f01b77a522e |
| Source note | uspto-grants-2016_06 |