HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methanol → (R)-Methyl 2-(2-chlorophenyl)-2-hydroxyacetate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Phosphorus oxychloride | HCID 24813 | — |
| Reactant | (-)-2-Chloromandelic acid | HCID 2733641 | — |
| Product | (R)-Methyl 2-(2-chlorophenyl)-2-hydroxyacetate | HCID 11790232 | 95% |
Reaction Steps
15 g of (R)-2-chloromandelic acid was mixed with methanol (CH3OH, 150 ml) and phosphorus chloride oxide (POCl3, 0.76 ml) in a flask by stiffing using a magnetic stirrer at the room temperature for 6 hours. When the reaction was completed, the obtained product was washed with an aqueous solution of sodium sulfite (Na2SO3) and ethylacetate (EA). Then, the organic layer was dehydrated with anhydrous magnesium sulfate (MgSO4), filtrated, and concented under reduced pressure. The concentrated residue was purified by a silica gel column chromatography to produce the title compound (15.64 g, yield 95%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09162975B2 |
| Source dataset | uspto-grants-2015_10 |
| ORD ID | ord-c03dd6c7776645f783eef6764914efe5 |
| Source note | uspto-grants-2015_10 |