Trifluoroacetic acid → alpha-[(Thioxomethyl)amino]benzeneacetic acid
反応式
[S:1]=[CH:2][NH:3][CH:4]([C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)[C:5]([O:7]C(C1C=CC=CC=1)C1C=CC=CC=1)=[O:6].FC(F)(F)C(O)=O.C1(OC)C=CC=CC=1>>[S:1]=[CH:2][NH:3][CH:4]([C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)[C:5]([OH:7])=[O:6]参加物
4
実験手順
3.61 g. (0.01 mol.) of α-[(thioxomethyl)amino]-benzeneacetic acid, diphenylmethyl ester are added to a mixture of 30 ml. of trifluoroacetic acid and 5 ml. of anisole at 0°-5° and the mixture is stirred for ten minutes. The mixture is concentrated, sodium bicarbonate solution is added to the residue and the aqueous phase is extracted with ether. This is then layered over with fresh ether, acidified and the aqueous phase is extracted twice with ether. Concentration of the ether solution yields α-[(thioxomethyl)amino]benzeneacetic acid as an oily residue.
後処理
- concentrationThe mixture is concentrated
- additionsodium bicarbonate solution is added to the residue
- extractionthe aqueous phase is extracted with ether
- extractionthe aqueous phase is extracted twice with ether
出典と根拠
- ORDレコード
- ord-a642de4751af44089f5e93ca18c27aca
- 出典データセット
- uspto-grants-1976_11
- 特許番号
- US03994889
反応ノート
読み込み中…