[CH3:1][O:2][C:3]1[CH:12]=[CH:11][C:6]([CH2:7][NH:8]C=O)=[CH:5][C:4]=1[C:13]([F:16])([F:15])[F:14].[ClH:17].C(OCC)C>C(O)C>[ClH:17].[CH3:1][O:2][C:3]1[CH:12]=[CH:11][C:6]([CH2:7][NH2:8])=[CH:5][C:4]=1[C:13]([F:14])([F:15])[F:16]3.8 g of N-[4-methoxy-3-(trifluoromethyl)benzyl]formamide was dissolved in 20 ml ethanol, 2 ml conc. hydrochloric acid was added thereto, and the mixture was heated under reflux for 3 hr. After cooling, diethyl ether was added thereto, and the resulting crystals were collected by filtration to give 2.5 g of 4-methoxy-3-(trifluoromethyl)benzylamine hydrochloride.
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