反応式
[CH3:1][C:2]1[CH:6]=[CH:5][S:4][CH:3]=1.[C:7](O[C:11](=[O:13])[CH3:12])(=[O:9])[CH3:8].P(=O)(O)(O)O.[CH3:19][C:20]1[S:21]C=[CH:23][CH:24]=1>>[C:7]([C:3]1[S:4][CH:5]=[CH:6][C:2]=1[CH3:1])(=[O:9])[CH3:8].[C:7]([C:5]1[S:4][CH:3]=[C:2]([CH3:1])[CH:6]=1)(=[O:9])[CH3:8].[C:11]([C:12]1[S:21][C:20]([CH3:19])=[CH:24][CH:23]=1)(=[O:13])[CH3:1]参加物
7
実験手順
2-Acetyl-3-methylthiophene and 2-acetyl-4-methylthiophene are prepared by acetylation of commercially-available 3-methylthiophene with acetic anhydride in the presence of phosphoric acid by the procedure of Hartough and Kosak, J. Am. Chem. Soc., 69, 3093 (1974). Using the same procedure with commercial 2-methylthiophene provides 2-acetyl-5-methylthiophene.
出典と根拠
- ORDレコード
- ord-a7289b853f0a430c878b4de9f53fb8f8
- 出典データセット
- uspto-grants-1978_08
- 特許番号
- US04110342
関連ノート
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