関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Piperazine | HCID 4837 | — |
| 反応物 | Binap, (A+-)- | HCID 634876 | — |
| 反応物 | 1-Bromo-2-chloro-4-fluorobenzene | HCID 2733406 | — |
| 反応物 | Sodium t-butoxide | HCID 23676156 | — |
| 触媒 | Bis(dibenzylideneacetone)palladium | HCID 9811564 | — |
| 溶媒 | Toluene | HCID 1140 | — |
| 生成物 | 1-(2-Chloro-4-fluorophenyl)piperazine | HCID 18423151 | — |
反応手順
A suspension of 1-bromo-2-chloro-4-fluorobenzene (4.19 g, 20 mmoles), piperazine (10.32 g, 120 mmoles), sodium tert-butoxide (2.3 g, 1.5 mmoles), tris(dibenzylideneacetone)dipalladium (366 mg, 0.4 mmoles) and racemic (±)-2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (747 mg, 1.2 mmoles) in toluene (2 mL) was heated to 120° C. overnight. The mixture was cooled, filtered and the filtrate concentrated under reduced pressure. The crude residue was purified by column chromatography (silica gel, 0-5% 2N methanolic ammonia in DCM) to provide the title compound.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US08415354B2 |
|---|
| 出典データセット | uspto-grants-2013_04 |
|---|
| ORD ID | ord-7f1f298730794705b9f359e2797fc3d4 |
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| 出典メモ | uspto-grants-2013_04 |
|---|
