Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Dichloromethane | HCID 6344 | — |
| Reactant | Hydrazine hydrate (1:1) | HCID 24654 | — |
| Reactant | HCID 58473621 | HCID 58473621 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 58473556 | HCID 58473556 | 100% |
Reaction Steps
2-(4-(2,7-dibromo-9-methyl-9H-fluoren-9-yl)butyl)isoindoline-1,3-dione (3.08, 5.71 mmol) was dissolved in ethanol (250 mL) under nitrogen. To the mixture was added hydrazine monohydrate (2.77 mL, 57.1 mmol), and the reaction was refluxed at 80° C. for 3.0 hours. The reaction was cooled to room temperature, and added 1M HCl (˜100 mL). The mixture was stirred for 30 minutes or until all solids were dissolved. Dichloromethane was added to the solution and the organic layer was extracted with saturated NaHCO3 three times, and washed with water. The organic layers were collected and removed solvent by vacuo to give an yellow oil (2.33 g, 100%). 1H NMR (500 MHz, CD2Cl2): δ=7.57 (d, 2H), 7.52 (d, 2H), 7.46-7.48 (dd, 2H), 2.39-2.42 (t, 2H), 1.95-1.98 (t, 2H), 1.44 (s, 3H), 1.17-1.23 (m, 2H), 0.59-0.65 (m, 2H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09139869B2 |
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| Source dataset | uspto-grants-2015_09 |
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| ORD ID | ord-a87bf8dc10e4447e9dc1574487622e1b |
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| Source note | uspto-grants-2015_09 |
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