Aniline → 4-Nitro-3-phenylaminobenzonitrile

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

A suspension of 3-fluoro-4-nitrobenzonitrile (1.66 g, 10.0 mmol) in DMSO (5 mL) was purged with a stream of argon prior to addition of phenylamine (1.82 mL, 20.0 mmol) and then the mixture was stirred at 120° C. for 1 h under an argon atmosphere. After cooling to RT, the reaction mixture was partitioned between EtOAc (75 mL) and an aqueous solution of KHSO4 (100 mL). The organic layer was then washed with brine, dried (Na2SO4) and concentrated in vacuo. The resulting residue was triturated with diethyl ether affording 4-Nitro-3-phenylaminobenzonitrile as red crystals (2.35 g, 98%). 1H NMR (CDCl3, 400 MHz): δ 9.48 (1H, bs), 8.29 (1H, d, J=8.76 Hz), 7.53-7.40 (3H, m), 7.35 (1H, t, J=7.52 Hz), 7.29-7.22 (2H, m), 6.97 (1H, d, J=8.79 Hz).

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