HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 886992Generated: October 29, 2026
Ethanol → tert-butyl N-[(4-aminophenyl)methyl]carbamate
https://huagongshe.com/reaction/886992
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Water | HCID 962 | — |
| Reactant | Ammonium Chloride | HCID 25517 | — |
| Reactant | tert-Butyl 4-nitrobenzylcarbamate | HCID 10610803 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | tert-butyl N-[(4-aminophenyl)methyl]carbamate | HCID 2756041 | 99% |
Reaction Steps
C4 (7.0 g, 27.7 mmol) was dissolved in dioxane (325 mL), ethanol (240 mL), and water (160 mL). The resultant solution was then treated with Fe(0) powder (7.12 g, 127.4 mmol) and ammonium chloride (5.33 g, 99.7 mmol), and the resultant mixture was stirred at 70° C. for 4 hours. The reaction mixture was cooled to 25° C., filtered through Celite®, and washed with EtOAc. The organic solvents were evaporated, and the resultant aqueous residue was extracted with EtOAc. The combined organic layers were dried over MgSO4, filtered, and concentrated to provide C5 as a yellow solid. Yield: 6.52 g, 99% yield. 1H NMR (400 MHz, d6-DMSO) δ: 7.146 (t, 1H), 6.87 (d, 2H), 6.48 (d, 2H), 4.95 (s, 2H), 3.92 (d, 2H), 1.38 (s, 9H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08247411B2 |
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| Source dataset | uspto-grants-2012_08 |
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| ORD ID | ord-320484cffa0046e9a12366013b856f1e |
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| Source note | uspto-grants-2012_08 |
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