Sodium Carbonate → HCID 178513243、化合物
反応式
[O:1]1[C:5]2[CH:6]=[CH:7][C:8]([C:10]#[N:11])=[CH:9][C:4]=2[CH:3]=[CH:2]1.Cl.[NH2:13][OH:14].C([O-])([O-])=O.[Na+].[Na+]>CCO>[OH:14][NH:13][C:10]([C:8]1[CH:7]=[CH:6][C:5]2[O:1][CH:2]=[CH:3][C:4]=2[CH:9]=1)=[NH:11]参加物
5
反応条件
- 温度
- 75 °C
実験手順
Prepared using General Procedure 1. To a flask containing benzofuran-5-carbonitrile (200 mg, 0.73 mmol) was added EtOH (6 mL), hydroxylamine hydrochloride (176.7 mg, 2.54 mmol) and Na2CO3 (154 mg, 1.42 mmol). The mixture was stirred at 75° C. overnight then concentrated, re-dissolved in DCM and washed with NaHCO3. The combined organic layers were dried over Na2SO4, and concentrated to provide 222 mg of crude N-hydroxybenzofuran-5-carboximidamide INT-68 as a white solid which was used directly in the next step without purification. LCMS-ESI (m/z) calculated for C9H8N2O2: 176.2; found 177.1 [M+H]+, tR=0.83 min.
後処理
- customPrepared
- concentrationthen concentrated
- dissolutionre-dissolved in DCM
- washwashed with NaHCO3
- dry with materialThe combined organic layers were dried over Na2SO4
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-1620ed58c85d4ab498dc063ea31d1811
- 出典データセット
- uspto-grants-2016_07
- 特許番号
- US09394264B2
反応ノート
読み込み中…