HuagongsheHuagongshe Chemistry Print Report · For research reference only
Aniline → HCID 20482846, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Aniline | HCID 6115 | — |
| Reactant | Hexamethylphosphoramide | HCID 12679 | — |
| Reactant | Ethyl 2-bromo-3-hydroxybutanoate | HCID 12541051 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Product | HCID 20482846 | HCID 20482846 | — |
Reaction Steps
To a mixture of ethyl 2-bromo-3-hydroxybutanoate (10 g) and 15 ml of HMPT is added 13.2 g of aniline. The reaction is stirred at RT for 3 days and then taken up in ether followed by washing with dilute sulfuric acid, pH 3, and water. The ether phase is dried over magnesium sulfate and evaporated to yield ethyl 2-phenylamino-3-hydroxybutanoate, which is saponified using 1.6 g of sodium hydoxide, 40 ml of methanol and 20 ml of water with stirring overnight at RT. The acid 2-phenylamino-3-hydroxybutanoic acid (3.0 g) is reacted with m-phenoxybenzyl bromide (3.4 g) in HMPT (20 ml) and potassium carbonate (2.12 g) at 35° for a few hours and worked up using ether/water to yield the m-phenoxybenzyl ester of 2-phenylamino-3-hydroxybutanoic acid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04411912 |
| Source dataset | uspto-grants-1983_10 |
| ORD ID | ord-fbb38a915a2d4809b58f56c5840d665f |
| Source note | uspto-grants-1983_10 |