Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | Lithium Chloride | HCID 433294 | — |
| Reactant | 1-(Triisopropylsilyl)pyrrole-3-boronic acid | HCID 2763303 | — |
| Reactant | HCID 9978492 | HCID 9978492 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 67051485 | HCID 67051485 | 36% |
Reaction Steps
A mixture of 30 (31.6 mg, 0,078 mmol), 1-triisopropylsilanyl-1H-pyrrole-3-boronic acid (31 mg, 0.12 mmol), PdCl2(PPh3)2 (6 mg, 7.8 μmol), LiCl (10 mg, 0.24 mmol), aqueous 1.0 M Na2CO3 (200 μL, 0.2 mmol), EtOH (0.47 mL) and toluene (0.47 mL) were heated at 85° C. over weekend. After cooling the organic layer was separated and purified by PTLC using AcOEt:hexane=3:7 as eluent to give the product 31 as a colourless oil (15.3 mg, 36%). 1H NMR (400 MHz, CDCl3) δ 1.13 (d, J=7.5 Hz, 18H), 1.49 (septet, J=7.5 Hz, 3H), 6.60 (dd, J=2.7, 1.5 Hz, 1H), 6.71 (dd, J=1.8, 0.79 Hz, 1H), 6.84 (t, J=2.5 Hz, 1H), 7.05 (t, J=1.7 Hz, 1H), 7.48 (t, J=8.0 Hz, 2H), 7.56 (m, 2H), 7.78 (s, 1H), 7.83 (s, 1H), 7.99 (d, J=2.0 Hz, 1H), 8.20 (m, 1H), 8.23 (s, 1H), 8.68 (d, J=2.0 Hz, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07432375B2 |
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| Source dataset | uspto-grants-2008_10 |
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| ORD ID | ord-fcc6773088844ca79cf61d5019ea5e41 |
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| Source note | uspto-grants-2008_10 |
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