Hydrochloric Acid → {2-[4-(Trifluoromethyl)phenyl]hydrazinylidene}acetic acid
反応式
[F:1][C:2]([F:12])([F:11])[C:3]1[CH:8]=[CH:7][C:6]([NH:9][NH2:10])=[CH:5][CH:4]=1.Cl.O.[C:15]([OH:19])(=[O:18])[CH:16]=O>O>[F:1][C:2]([F:11])([F:12])[C:3]1[CH:4]=[CH:5][C:6]([NH:9][N:10]=[CH:16][C:15]([OH:19])=[O:18])=[CH:7][CH:8]=1参加物
5
実験手順
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.
後処理
- customThe precipitates thus
- customseparated out
- filtrationwas collected by filtration
- washwashed with water
- dry with materialdried over phosphorus pentoxide
出典と根拠
- ORDレコード
- ord-4e10d66f2d2048fa892f7bfb5cdb5d3a
- 出典データセット
- uspto-grants-1995_11
- 特許番号
- US05466820
反応ノート
読み込み中…