(5-Ethylthiophen-2-yl)boronic acid → HCID 22998405、化合物
反応式
[CH2:1]([C:3]1[S:4][C:5](B(O)O)=[CH:6][CH:7]=1)[CH3:2].Br[C:12]1[S:16][C:15]([S:17]([N:20]2[CH:24]=[CH:23][CH:22]=[CH:21]2)(=[O:19])=[O:18])=[CH:14][CH:13]=1>>[CH2:1]([C:3]1[S:4][C:5]([C:12]2[S:16][C:15]([S:17]([N:20]3[CH:24]=[CH:23][CH:22]=[CH:21]3)(=[O:18])=[O:19])=[CH:14][CH:13]=2)=[CH:6][CH:7]=1)[CH3:2]参加物
3
実験手順
N-[5-(5-ethyl-2-thienyl)thiophene-2-sulfonyl]pyrrole was prepared in the same manner as described in Example 32C from 2-ethylthiophene-5-boronic acid (411 mg, 2.64 mmol) and N-(5-bromothiophene-2-sulfonyl)pyrrole (700 mg, 2.39 mmol). Purification by column chromatography using 2% ethyl acetate/hexanes gave 630 mg of the pure product as a dark brown solid (90% yield).
後処理
- customPurification by column chromatography
出典と根拠
- ORDレコード
- ord-58669fc25d9b4fa8aa94585b31b85cc9
- 出典データセット
- uspto-grants-1999_10
- 特許番号
- US05962490
反応ノート
読み込み中…