Benzenesulfonamide, 2-(3,3,3-trifluoro-1-propenyl)- → 2-(3,3,3-Trifluoropropyl)benzenesulfonamide
反応式
[F:1][C:2]([F:16])([F:15])[CH:3]=[CH:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[S:11]([NH2:14])(=[O:13])=[O:12].[H][H]>[Pd].C(OCC)(=O)C>[F:16][C:2]([F:1])([F:15])[CH2:3][CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=1[S:11]([NH2:14])(=[O:13])=[O:12]参加物
5
実験手順
A mixture of 50.2 g of 2-(3,3,3-trifluoro-1-propenyl)-phenylsulfonamide, 500 ml of ethyl acetate and 5 g of a 5% Pd/C catalyst is shaken for 1/2 hour at 20°-25° C. in a hydrogen atmosphere. The catalyst is then filtered off, the mixture is concentrated by evaporation, and the residue is crystallised from a mixture of methylene chloride and ether to thus yield 49.6 g of 2-(3,3,3-trifluoropropyl)-phenylsulfonamide, m.p. 148°-149° C.
後処理
- filtrationThe catalyst is then filtered off
- concentrationthe mixture is concentrated by evaporation
- customthe residue is crystallised from a mixture of methylene chloride and ether to thus yield 49.6 g of 2-(3,3,3-trifluoropropyl)-phenylsulfonamide, m.p. 148°-149° C.
出典と根拠
- ORDレコード
- ord-e22fcaab28dd42379240c0162d2d7006
- 出典データセット
- uspto-grants-1987_06
- 特許番号
- US04671819
反応ノート
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