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Hydrochloric Acid → 3-Chloro-5-(methylthio)benzonitrile
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Diisopropylethylamine | HCID 81531 | — |
| 反応物 | Sodium methanethiolate | HCID 4378561 | — |
| 反応物 | 3-Bromo-5-chlorobenzonitrile | HCID 15965893 | — |
| 触媒 | 1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) | HCID 636044 | — |
| 触媒 | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| 溶媒 | Toluene | HCID 1140 | — |
| 生成物 | 3-Chloro-5-(methylthio)benzonitrile | HCID 66878686 | 76.6% |
反応手順
(Step 1) A mixture of 3-bromo-5-chlorobenzonitrile (4.0 g), sodium methanethiolate (1.42 g), Pd2(dba)3 (84 mg), Xantphos (106 mg) and N,N-diisopropylethylamine (4.78 g) was stirred in toluene (100 ml) at 90° C. for 9 hr. The reaction mixture was treated with 1N hydrochloric acid, and extracted with ethyl acetate. The organic layer was washed with saturated brine, and dried over magnesium sulfate. The solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:20) to give 3-chloro-5-(methylsulfanyl)benzonitrile (2.6 g) as a solid.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US08481569B2 |
| 出典データセット | uspto-grants-2013_07 |
| ORD ID | ord-ce758c7710584c07936b1fa8bf5ecaec |
| 出典メモ | uspto-grants-2013_07 |