1,3-Dichloro-2-nitrobenzene → 2-[4-(3-Chloro-2-nitroanilino)phenyl]ethanol

関与物質

反応条件

反応手順

A mixture of 2,6-dichloronitrobenzene (Norman, M. H.; Chen, N.; et al. PCT Int. Appl., WO 9940091 (1999)., Spada, A. P.; Fink, C. A.; Myers, M. R. PCT Int. Appl., WO 9205177 (1992)., 6.3 g, 32.8 mmol), 4-aminophenylethyl alcohol (4.9 g, 36 mmol) and sodium acetate (3.2 g, 39.3 mmol) was placed in a sealed tube and heated at 160° C. for 3 h. After cooling, the mixture was poured into water (100 mL) and extracted with ethyl acetate (300 mL). The organic layer was washed with 2N aqueous NaOH (100 mL) and brine (100 mL), then dried (Na2SO4), and concentrated. Purification by flash column chromatography on silica gel eluting with hexane/ethyl acetate (1:1) to afford 4.57 g (72%) of the title compound as a red oil: 1H-NMR (CDCl3) δ 7.09–7.28 (6H, m), 6.91 (1H, dd, J=2.0, 7.1 Hz), 3.87 (2H, t, J=6.6 Hz), 2.86 (2H, t J=6.6 Hz).

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