Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | Diisopropyl azodicarboxylate | HCID 5363146 | — |
| Reactant | HCID 178419484 | HCID 178419484 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Toluene | HCID 1140 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 86704969 | HCID 86704969 | — |
Reaction Steps
To a solution of ethanol (0.118 ml) and triphenylphosphine (530 mg) in THF (3 ml) was added 3-bromo-1H-pyrazolo[4,3-b]pyridine (200 mg), and the mixture was heated at 50° C. A toluene solution (1.9 M, 1.06 ml) of DIAD was added dropwise at 50° C., and the mixture was stirred for 30 min. The reaction mixture was cooled to room temperature, water was added, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (hexane/ethyl acetate) to give the title compound (71 mg).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09029388B2 |
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| Source dataset | uspto-grants-2015_05 |
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| ORD ID | ord-93a526a934024906b1ad99b4fff6a62b |
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| Source note | uspto-grants-2015_05 |
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