関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Triethylamine | HCID 8471 | — |
| 反応物 | Phenylacetylene | HCID 10821 | — |
| 反応物 | 2-Pyridinamine, 5-iodo- | HCID 88579 | — |
| 触媒 | Triphenylphosphine | HCID 11776 | — |
| 触媒 | Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI) | HCID 24350 | — |
| 触媒 | Dichlorobis(triphenylphosphine)palladium | HCID 6102075 | — |
| 溶媒 | Tetrahydrofuran | HCID 8028 | — |
| 生成物 | 5-Phenylethynyl-pyridin-2-ylamine | HCID 46854190 | 62% |
反応手順
Bis-(triphenylphosphine)-palladium(II)dichloride (480 mg, 0.68 mmol, 0.05 equiv.) was dissolved in 50 ml THF. (3 g, 13.6 mmol) 2-Amino-5-iodopyridine and phenylacetylene (2.79 g, 27.3 mmol, 2.0 equiv.) were added at room temperature. Triethylamine (5.58 ml, 40.9 mmol, 3 equiv.), triphenylphosphine (111 mg, 0.41 mmol, 0.03 equiv.) and copper(I)iodide (70 mg, 0.41 mmol, 0.03 equiv.) were added and the mixture was stirred for 2 hours at 65° C. The reaction mixture was cooled and extracted with saturated NaHCO3 solution and three times with ethyl acetate. The organic layers were combined, dried over sodium sulfate and evaporated to dryness. The crude product was suspended in dichloromethane, filtered and the solid evaporated to dryness. The desired 5-phenylethynyl-pyridin-2-ylamine (1.6 g, 62% yield) was obtained as a light yellow solid, MS: m/e=195.3 (M+H+).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US08530472B2 |
|---|
| 出典データセット | uspto-grants-2013_09 |
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| ORD ID | ord-9ef69a63f7664327a076ce403c75816c |
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| 出典メモ | uspto-grants-2013_09 |
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