反応式
O[N:2]=[CH:3][C:4]1[C:8]([C:9]2[CH:14]=[CH:13][CH:12]=[C:11]([Cl:15])[C:10]=2[Cl:16])=[CH:7][NH:6][CH:5]=1.ON=CC1NC=C(C2C=CC=C(Cl)C=2Cl)C=1>C(OC(=O)C)(=O)C.C(OCC)(=O)C>[Cl:16][C:10]1[C:11]([Cl:15])=[CH:12][CH:13]=[CH:14][C:9]=1[C:8]1[C:4]([C:3]#[N:2])=[CH:5][NH:6][CH:7]=1参加物
5
実験手順
3.2 g of the 3-hydroxyiminomethyl-4-(2,3-dichlorophenyl)pyrrole obtained in (b) are kept for 5 hours at c. 100° C. in 50 ml of acetic anhydride, then cooled to room temperature, poured into ice/NaOH, and the resultant mixture is stirred for 2 hours. The precipitate is dissolved in ethyl acetate, washed with water, the exter phase is dried over magnesium sulfate. The residue is purified by column chromatography (silica gel; elution with a 4:1 mixture of toluence/ethyl acetate). Melting point: 149°-151° C.
後処理
- washwashed with water
- dry with materialthe exter phase is dried over magnesium sulfate
- customThe residue is purified by column chromatography (silica gel
- washelution
- additionwith a 4:1 mixture of toluence/ethyl acetate)
出典と根拠
- ORDレコード
- ord-82041719c82b491297a3fe00e6fc208a
- 出典データセット
- uspto-grants-1987_11
- 特許番号
- US04709053
関連ノート
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