HuagongsheHuagongshe Chemistry Print Report · For research reference only
Phthalimide → 2-((2-Methoxy-6-(2,2,2-trifluoroethoxy)pyridin-3-yl)methyl)isoindoline-1,3-dione
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Phthalimide | HCID 6809 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | Di-tert-butyl azodicarboxylate | HCID 97268 | — |
| Reactant | (2-Methoxy-6-(2,2,2-trifluoroethoxy)pyridin-3-yl)methanol | HCID 67509554 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | 2-((2-Methoxy-6-(2,2,2-trifluoroethoxy)pyridin-3-yl)methyl)isoindoline-1,3-dione | HCID 67508678 | 37% |
Reaction Steps
A mixture of (2-methoxy-6-(2,2,2-trifluoroethoxy)pyridin-3-yl)methanol (1.19 g, 5.02 mmol, Step-2), phthalimide (0.74 g, 5.02 mmol), di-tert-butyl azodicarboxylate (1.05 g, 6.02 mmol) and triphenylphosphine (1.97 g, 7.53 mmol) in tetrahydrofuran (50 mL) is stirred at room temperature for 20 hours. The reaction mixture is concentrated in vacuo. The residue is purified by column chromatography on silica gel eluting with n-hexane/ethyl acetate (6:1) to give 0.67 g (37% yield) of the title compound as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09302991B2 |
| Source dataset | uspto-grants-2016_04 |
| ORD ID | ord-1d1aef006f154b83b0e21169cc08d048 |
| Source note | uspto-grants-2016_04 |