Aluminium lithium hydride → 2-(4-Chloro-2-methylphenyl)ethanamine

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Reaction Steps

A solution of 4-chloro-2-methyl-1-(2-nitrovinyl)benzene (1.83 g, 9.26 mmol) in tetrahydrofuran (40 mL) was cooled to 0° C. in an ice bath, and a 1M solution of lithium aluminum hydride in tetrahydrofuran (37 mL, 37 mmol) was added, dropwise over 10 minutes. The resulting mixture was stirred in the ice bath for 2 hours 30 minutes, then quenched in the following manner: water (1.5 mL) was added dropwise, and after stirring for 5 minutes, 1M sodium hydroxide (1.5 mL) was added. After stirring for a further 15 minutes, water (5 mL) was added, and the resulting mixture was stirred at ambient temperature for 15 minutes, then filtered through a medium porosity sintered glass funnel. The collected precipitate was washed with ethyl acetate (60 mL). The combined filtrate and wash was dried over sodium sulfate and concentrated to afford 2-(4-chloro-2-methylphenyl)ethanamine as a brown oil (1.17 g, 75% yield).

Provenance & Evidence