Hydrochloric Acid → {2-[4-(Trifluoromethyl)phenyl]hydrazinylidene}acetic acid

関与物質

反応手順

To a mixture of 5.0 g of 4-(trifluoromethyl)phenylhydrazine (28.4 mmol), 31 ml of water and 3.1 ml of concentrated hydrochloric acid was added 2.9 g of glyoxylic acid-hydrate (31.4 mmol), and the mixture was stirred for one hour at room temperature. The precipitates thus separated out was collected by filtration, washed with water and dried over phosphorus pentoxide to give 6.26 g of 4-(trifluoromethyl)phenylhydrazonoacetic acid (95%) as a pale yellow powder.

情報源と証拠