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Hydrochloric Acid → 2-Aminopyridinoyl-piperidine
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Benzophenone imine | HCID 136809 | — |
| 反応物 | Binap, (A+-)- | HCID 634876 | — |
| 反応物 | Sodium t-butoxide | HCID 23676156 | — |
| 反応物 | 2-Chloropyridinoyl-piperidine | HCID 67442558 | — |
| 溶媒 | Toluene | HCID 1140 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 生成物 | 2-Aminopyridinoyl-piperidine | HCID 67443361 | — |
反応手順
Next, the 2-chloropyridinoyl-piperidine intermediate is reacted with benzophenone imine in the presence of tris(dibenzylidineacetone)-dipalladium(0) Pd2(dba)3) as a catalyst, and 2,2′-bis(diphenylphosphino)-1,1′-binaphthyl (BINAP) and sodium t-butoxide in a suitable solvent, such as toluene, at reflux, to substitute the halo group with the benzophenone imino group. After work-up, this intermediate is typically reacted with hydrochloric acid in a suitable solvent, such as tetrahydrofuran, and then purified to give the corresponding 2-aminopyridinoyl-piperidine intermediate.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07423050B2 |
| 出典データセット | uspto-grants-2008_09 |
| ORD ID | ord-9b02042daf3a4b20971170c5f1a9a16c |
| 出典メモ | uspto-grants-2008_09 |