Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Phenol | HCID 996 | — |
| Reactant | Triphenylphosphine | HCID 11776 | — |
| Reactant | Diisopropyl diazene-1,2-dicarboxylate | HCID 75555 | — |
| Reactant | 5-bromo-2,3-dihydro-1H-inden-1-ol | HCID 13486299 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 89582694 | HCID 89582694 | 85% |
Reaction Steps
A solution of 5-bromo-2,3-dihydro-1H-inden-1-ol (1 g, 4.7 mmol), phenol (835 mg, 8.9 mmol) and triphenylphosphine (1.8 g, 6.9 mmol) in anhydrous tetrahydrofuran (70 mL) was stirred at 0° C. under nitrogen atmosphere. To this mixture was added dropwise diisopropyl azodicarboxylate (1.4 g, 6.9 mmol) over 5 minutes. Until TLC indicated that starting material was consumed, the solvent was evaporated in vacuo and the resulting oil was purified by column chromatography (silica gel, hexane/ethyl acetate=1/1) to give the product 5-bromo-1-phenoxy-2,3-dihydro-1H-indene (1.1 g, 85%) as a white solid. LRMS (M+H+) m/z: calcd 288.01. found 288. 1H NMR (300 MHz, CDCl3): δ 7.46-7.27 (m, 6H), 7.02 (s, 1H), 6.99-6.98 (m, 1H), 5.73-5.70 (m, 1H), 3.14-3.09 (m, 1H), 2.96-2.95 (m, 1H), 2.59-2.54 (m, 1H), 2.27-2.23 (m, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09206128B2 |
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| Source dataset | uspto-grants-2015_12 |
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| ORD ID | ord-8b536e914bce4ec198e9927adf59da2b |
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| Source note | uspto-grants-2015_12 |
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