HuagongsheHuagongshe Chemistry Print Report · For research reference only
Methylparaben → HCID 69332921, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Methylparaben | HCID 7456 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | Diisopropyl azodicarboxylate | HCID 5363146 | — |
| Reactant | HCID 20737787 | HCID 20737787 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 69332921 | HCID 69332921 | 50% |
Reaction Steps
To a stirred solution of [1-tert-butoxycarbonyl-(2S)-octahydroindolyl]methanol (947 mg, 3.7 mmol), methyl 4-hydroxybenzoate (565 mg, 3.7 mmol), and Ph3P (1.2 g, 4.5 mmol) in THF (10 ml) was added DIAD (984 mg, 4.5 mmol) at 0° C. The reaction mixture was stirred at room temperature for 18 hr. The mixture was concentrated in vacuo. The residue was purified by column chromatography on silica gel with n-hexane-EtOAc (9/1, v/v) as eluent to give methyl 4-[1-tert-butoxycarbonyl-(2S)-octahydroindolylmethoxy]benzoate (700 mg, 50%) as a pale yellow oil. 1H-NMR (CDCl3) δ1.10-2.25 (m, 11H), 1.45 (s, 9H), 3.88 (s, 3H), 3.70-4.20 (m, 3H), 4.36 (br s, 1H), 6.94 (d, J=8.8H z, 2H), 7.96 (d, J=8.5H z, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US06756378B2 |
| Source dataset | uspto-grants-2004_06 |
| ORD ID | ord-d9bd8de743fd4de792c0ec6935d11fcc |
| Source note | uspto-grants-2004_06 |