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HRID 913570作成日：2026年10月27日
Cesium carbonate → 4-Chloro-2-ethyl-1-({5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-3-yl}methyl)-1H-benzimidazole-5-carbonitrile
https://huagongshe.com/reaction/913570
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Cesium carbonate | HCID 10796 | — |
| 反応物 | 3-(Chloromethyl)-5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazole | HCID 2736622 | — |
| 反応物 | 4-chloro-2-ethyl-1H-benzimidazole-5-carbonitrile | HCID 67404902 | — |
| 溶媒 | Dimethylformamide | HCID 6228 | — |
| 生成物 | 4-Chloro-2-ethyl-1-({5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-3-yl}methyl)-1H-benzimidazole-5-carbonitrile | HCID 67407087 | 12.6% |
反応手順
4-Chloro-2-ethyl-1H-benzimidazole-5-carbonitrile (0.014 g, 0.068 mmol), Cs2CO3 (0.033 g, 0.102 mmol), and 3-(chloromethyl)-5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazole (0.027 g, 0.102 mmol) were combined in DMF (10 mL) and heated to 90° C. for 30 min. The cooled reaction mixture was partitioned between Et2O and water. The organic portion was washed with brine, dried over Na2SO4, filtered, and concentrated in vacuo. Purification (SiO2, EtOAc/hexanes) afforded the title compound (0.0037 g): MS (ESI) m/z 432 (M+1).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US08026262B2 |
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| 出典データセット | uspto-grants-2011_09 |
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| ORD ID | ord-7643a33bd341423f85eac0498cb29a7d |
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| 出典メモ | uspto-grants-2011_09 |
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