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1-(Cyanomethyl)-3,5-dimethoxybenzene → 1-Bromo-2,4-dimethoxy-6-cyanobenzene
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 1-(Cyanomethyl)-3,5-dimethoxybenzene | HCID 29482 | — |
| 反応物 | Pyridiniumtribromide | HCID 21124087 | — |
| 溶媒 | Dichloromethane | HCID 6344 | — |
| 生成物 | 1-Bromo-2,4-dimethoxy-6-cyanobenzene | HCID 22571829 | 89.2% |
反応手順
To a solution of 3,5-dimethoxybenzonitrile (2 g) in CH2Cl2 (100 mL) was added pyridinium tribromide (4 g). The mixture was stirred for 24 h at room temperature then washed successively with aqueous NaHCO3, water and brine, dried (MgSO4) filtered and evaporated. The residue was crystallized from CH2Cl2 and hexane to yield the title compound (1.8 g).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06855843B2 |
| 出典データセット | uspto-grants-2005_02 |
| ORD ID | ord-27cbedddaa434946b43587b7aee9fe3e |
| 出典メモ | uspto-grants-2005_02 |