HuagongsheHuagongshe Chemistry Print Report · For research reference only
Benzeneacetic acid, 4-hydroxy-, methyl ester → HCID 178500704, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Benzeneacetic acid, 4-hydroxy-, methyl ester | HCID 518900 | — |
| Catalyst | Rhodium | HCID 23948 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | HCID 178500704 | HCID 178500704 | 42% |
Reaction Steps
A solution of methyl 4-hydroxyphenylacetate (10.01 g, 60.2 mmol, CAS 14199-15-6), rhodium (5% on Alumina) (0.073 g, 0.71 mmol) in MeOH (30 mL) was hydrogenated at 8 bar. The crude was filtered through Celite and concentrated at reduced pressure. The remaining colorless oil was dissolved in isohexane and EtOAc and purified by flash chromatography using EtOAc (20-50%) in isohexane to afford the title cis compound (4.31 g, 42%) as colorless oil. NMR analysis of both trans and cis isomers were compared to make sure that the right isomer was used in subsequent steps.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07994179B2 |
| Source dataset | uspto-grants-2011_08 |
| ORD ID | ord-ac5dd49f12eb49678d72f5055f8689f4 |
| Source note | uspto-grants-2011_08 |