HuagongsheHuagongshe Chemistry Print Report · For research reference only
Sodium Hydroxide → (RS)-phenyl-pyridin-2-yl-acetic acid methyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | alpha-Phenyl-2-pyridineacetamide | HCID 97964 | — |
| Reactant | Hydrochloride methanol | HCID 21893726 | — |
| Product | (RS)-phenyl-pyridin-2-yl-acetic acid methyl ester | HCID 3346835 | 59% |
Reaction Steps
(RS)-Phenyl-pyridin-2-yl-acetamide (0.340 g, 1.60 mmol) was dissolved in 5 ml of a saturated solution of HCl/methanol and refluxed for 6 h in a closed vessel. The mixture is poured on 25 g of ice, the pH is adjusted to 8-9 by cautious addition of 28% sodium hydroxide solution keeping the temperature below 10° C. and the product is extracted with ethyl acetate/water. After drying (MgSO4) and concentration, the crude material is purified by flash chromatography on silicagel using 1:4 mixture of ethyl acetate and hexane as eluant to yield 0.204 g (0.939 mmol, 59%) of (RS)-phenyl-pyridin-2-yl-acetic acid methyl ester as a white solid, m.p. 74° C. and MS: m/e=228.2 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06548522B1 |
| Source dataset | uspto-grants-2003_04 |
| ORD ID | ord-e259f6bfebd7403885b51c9a026f4b53 |
| Source note | uspto-grants-2003_04 |