反応式
ClC1C=CC=C[N:3]=1.S(=O)(=O)(O)O.Cl[C:14]1[C:19]([N+:20]([O-:22])=[O:21])=[CH:18][CH:17]=[CH:16][N:15]=1.C([O-])(=O)C.[NH4+]>COCCOCCOC>[NH2:3][C:14]1[C:19]([N+:20]([O-:22])=[O:21])=[CH:18][CH:17]=[CH:16][N:15]=1参加物
6
実験手順
A general synthesis route begins with 2-chloropyridine which is nitrated in the presence of sulfuric acid to make 2-chloro-3-nitropyridine. This material is reacted with ammonium acetate in the presence of diglyme at about 160° C. to form 2-amino-3-nitropyridine which is reduced to form 2,3-diaminopyridine. The 2,3-diaminopyridine is reacted with 2-thiophenecarboxylic acid in the presence of polyphosphoric acid at about 125° C. to prepare 2-(2-thienyl)imidazolo [4,5]pyridine.
後処理
- customA general synthesis route
出典と根拠
- ORDレコード
- ord-a5d0e9606d7b42a998db3f5e949b214e
- 出典データセット
- uspto-grants-2001_02
- 特許番号
- US06194430B1
関連ノート
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