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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2093027Generated: November 3, 2026

Ethanol → tert-butyl N-[(4-aminophenyl)methyl]carbamate

https://huagongshe.com/reaction/2093027

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantWaterHCID 962—
ReactantAmmonium ChlorideHCID 25517—
Reactanttert-Butyl 4-nitrobenzylcarbamateHCID 10610803—
Solvent1,4-DioxaneHCID 31275—
Producttert-butyl N-[(4-aminophenyl)methyl]carbamateHCID 275604199%

Reaction Conditions

Temperature25 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08440822B2
Source datasetuspto-grants-2013_05
ORD IDord-0a3feb4a1a214141b6eef90c11980196
Source noteuspto-grants-2013_05