Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | 1-Naphthylamine | HCID 8640 | — |
| Reactant | Proton sponge | HCID 88675 | — |
| Reactant | P,P-Diphenylphosphinic azide | HCID 199401 | — |
| Reactant | HCID 22144274 | HCID 22144274 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 22144262 | HCID 22144262 | 49% |
Reaction Steps
A solution of 4-pentyloxy-naphthalene-1-carboxylic acid (103 mg, 0.4 mmol) and 1,8-bis(dimethylamino)naphthalene (86 mg, 0.4 mmol) in THF (0.8 mL) is stirred at room temperature for 30 min. After addition of DPPA (86 μL, 0.4 mmol) and 1-naphthylamine (229 mg, 1.6 mmol) the mixture is heated at 100° C. for 6 h, distributed between 2M HCl (8 mL) and DCM (2×8 mL). The combined organic phases are washed with 1 M Na2CO3 and water, dried over Na2SO4 and concentrated. Flash chromatography (cyclohexane/acetone) yields 78 mg (49%) of brownish crystals.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07045533B2 |
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| Source dataset | uspto-grants-2006_05 |
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| ORD ID | ord-e5fd8a3295854397a104a9d1a72b72cb |
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| Source note | uspto-grants-2006_05 |
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