Methyl 5-aminopyridine-3-carboxylate → (5-Aminopyridin-3-yl)methanol
反応式
C[O:2][C:3](=O)[C:4]1[CH:9]=[C:8]([NH2:10])[CH:7]=[N:6][CH:5]=1.[H-].[H-].[H-].[H-].[Li+].[Al+3]>C1COCC1>[NH2:10][C:8]1[CH:9]=[C:4]([CH2:3][OH:2])[CH:5]=[N:6][CH:7]=1参加物
4
実験手順
5-Amino-nicotinic acid methyl ester (5.7 g, 30.2 mmol) was dissolved in THF (150 ml) and LiAlH4 (1M in THF solution 133 ml, 133 mmol) added slowly at 0° C. The reaction mixture was stirred at room temperature for 21 h. The reaction mixture was quenched and acidified to pH 3 using dilute HCl, and basified (pH 8) using solid Na2CO3. Solvents were removed under reduced pressure. The residue was filtered through silica gel using 20% MeOH/DCM yielding the product 3.8 g, (100%) with LCMS purity 97%, m/z 125 [M++H]+, by ELS.
後処理
- customThe reaction mixture was quenched
- customSolvents were removed under reduced pressure
- filtrationThe residue was filtered through silica gel using 20% MeOH/DCM yielding the product 3.8 g, (100%) with LCMS purity 97%, m/z 125 [M++H]+
出典と根拠
- ORDレコード
- ord-aba6cc03212c405e89b4b5713114bf63
- 出典データセット
- uspto-grants-2011_05
- 特許番号
- US07939666B2
反応ノート
読み込み中…