HuagongsheHuagongshe Chemistry Print Report · For research reference only
Isopropanol → Methyl 3-chloro-4-isopropoxybenzoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Isopropanol | HCID 3776 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | Diisopropyl diazene-1,2-dicarboxylate | HCID 75555 | — |
| Reactant | Methyl 3-chloro-4-hydroxybenzoate | HCID 77580 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Methyl 3-chloro-4-isopropoxybenzoate | HCID 22597811 | 101.4% |
Reaction Steps
To a solution of 1.42 g (7.63 mmol) of methyl 3-chloro-4-hydroxybenzoate, 585 μL (7.63 mmol) of 2-propanol, and 3.0 g (11.45 mmol) of triphenylphosphine in 20 mL of THF at 0° C. was added 2.25 mL (11.45 mmol) of diisopropyl azodicarboxylate. The mixture was allowed to warm up to rt and stirred for 16 hr. The solvent was removed. Chromatography on a Biotage 40+M cartridge using 1:19 v/v EtOAc/hexanes as the eluant afforded 1.77 g (100%) of the title compound: 1H NMR δ 1.41 (d, J=6.2, 6H), 4.63-4.70 (m, 1H), 6.93 (d, J=8.7, 1H), 7.89 (dd, J=2.2, 8.6, 1H), 8.05 (d, J=2.0, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US07659294B2 |
| Source dataset | uspto-grants-2010_02 |
| ORD ID | ord-b0c0563358f749d3bb302440d99088ec |
| Source note | uspto-grants-2010_02 |