Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Cesium fluoride | HCID 25953 | — |
| Reactant | 4,4,5,5-Tetramethyl-2-(prop-2-en-1-yl)-1,3,2-dioxaborolane | HCID 2763171 | — |
| Reactant | HCID 19358329 | HCID 19358329 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 86725257 | HCID 86725257 | — |
Reaction Steps
To a mixture of benzyl 5-bromoisoindoline-2-carboxylate (332 mg, 1 mmol), tetrakistriphenylphosphine palladium (0) (80 mg, 0.07 mmol), and cesium fluoride (604 mg, 4 mmol) was added THF (7 mL). The system was degassed and flushed with argon. To this mixture was added allyl boronic acid pinacol ester (285 μL, 1.5 mmol). The resulting mixture was heated to 72° C. and stirred at this temperature for 4 hr then cooled to room temperature. The mixture was diluted with ethyl acetate, washed with brine, dried over magnesium sulfate and concentrated under vacuum. The residue was purified by silica chromatography (25 g silica eluted with 3-40% ethyl acetate in hexane) to give the title compound as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09376454B2 |
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| Source dataset | uspto-grants-2016_06 |
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| ORD ID | ord-ea20315fed8a4cc08a049af701580fd9 |
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| Source note | uspto-grants-2016_06 |
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