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36 g (0.178 Mol) of 1-(2-Chloro-ethoxy)-4-nitro-benzene is dissolved in 360 mL of ethanol and subjected to catalytic hydration at rt using PtO2 (1.5 g) as catalyst. The resulting suspension is diluted with CH2Cl2, filtered, and concentrated to approx. 150 mL. After cooling to 0° C. the crystals are filtered off, washed and dried at 60° C. under vacuum to obtain 4-(2-chloro-ethoxy)-phenylamine. Title compound: m.p.: 87-91° C.; ES-MS: 172 [M+H]+; single peak at tR=2.73 min (System 1).

1. customsubjected to catalytic hydration at rt
2. filtrationfiltered
3. concentrationconcentrated to approx. 150 mL
4. filtrationare filtered off
5. washwashed
6. customdried at 60° C. under vacuum