Ethyl ketone → ethyl 5-(4,5-dimethoxy-2-nitrobenzoyl)-2-(3-methoxypentan-3-yl)-2H-1,2,3-triazole-4-carboxylate
反応式
O.[C:2]1(C)[CH:7]=[CH:6]C(S(O)(=O)=O)=[CH:4][CH:3]=1.CC[C:15](=[O:18])CC.C(OC)(OC)OC.[CH3:26][O:27][C:28]1[C:45]([O:46][CH3:47])=[CH:44][C:31]([C:32]([C:34]2[NH:38][N:37]=[N:36][C:35]=2[C:39]([O:41][CH2:42][CH3:43])=[O:40])=[O:33])=[C:30]([N+:48]([O-:50])=[O:49])[CH:29]=1>C(Cl)Cl.C(N(CC)CC)C>[CH3:26][O:27][C:28]1[C:45]([O:46][CH3:47])=[CH:44][C:31]([C:32]([C:34]2[C:35]([C:39]([O:41][CH2:42][CH3:43])=[O:40])=[N:36][N:37]([C:2]([O:18][CH3:15])([CH2:7][CH3:6])[CH2:3][CH3:4])[N:38]=2)=[O:33])=[C:30]([N+:48]([O-:50])=[O:49])[CH:29]=1参加物
7
反応物 4
生成物 1
試薬・触媒・溶媒 2
実験手順
p-Toluenesulfonic acid monohydrate (20 mg) was added to a solution of 3-pentanone (3.1 ml) and trimethyl orthoformate (3.3 ml) in methylene chloride (10 ml). The mixture was heated for one hr with stirring. This solution (4 ml) was added to a solution of ethyl 5-(4,5-dimethoxy-2-nitrobenzoyl)-1H-1,2,3-triazole-4-carboxylate (Synthesis Example 2) (140 mg) in methylene chloride (2 ml). The mixture was stirred at room temperature for one hr, and triethylamine (0.05 ml) was then added thereto. The mixture was post-treated by a conventional method and subjected to separation and purification to give ethyl 5-(4,5-dimethoxy-2-nitrobenzoyl)-2-(3-methoxypentan-3-yl)-2H-1,2,3-triazole-4-carboxylate (140 mg, 78%) as a yellow powder.
後処理
- temperatureThe mixture was heated for one hr
- stirringThe mixture was stirred at room temperature for one hr
- additionThe mixture was post-treated by a conventional method
- customsubjected to separation and purification
出典と根拠
- ORDレコード
- ord-a1da1e59376f4493b1f97a6190d14fe6
- 出典データセット
- uspto-grants-2002_04
- 特許番号
- US06372735B1
反応ノート
読み込み中…