関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Ethanol | HCID 702 | — |
| 反応物 | Toluene | HCID 1140 | — |
| 反応物 | Benzo(B)Thiophene-2-Boronic Acid | HCID 2359 | — |
| 反応物 | Potassium Carbonate | HCID 11430 | — |
| 反応物 | 4-bromo-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrrolo[2,3-b]pyridine | HCID 57477561 | — |
| 触媒 | HCID 178418397 | HCID 178418397 | — |
| 溶媒 | Water | HCID 962 | — |
| 溶媒 | Ethyl Acetate | HCID 8857 | — |
| 生成物 | 4-(1-benzothien-2-yl)-1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]pyridine | HCID 57480413 | 87.6% |
反応手順
1-Benzothien-2-ylboronic acid (0.05 g, 0.0003 mol) and 4-bromo-1-[2-(trimethylsilyl)-ethoxy]methyl-1H-pyrrolo[2,3-b]pyridine (0.10 g, 0.00031 mol) were combined in toluene (3.0 mL, 0.028 mol) and ethanol (1.0 mL, 0.017 mol). Potassium carbonate (0.085 g, 0.00062 mol) dissolved in water (1.0 mL) then was added and the reaction was degassed with nitrogen. Then tetrakis(triphenylphosphine)palladium(0) (0.05 g, 0.00004 mol) was added and the reaction was heated to 120° C. in a sealed tube in the microwave for 60 minutes. This was allowed to cool to rt, taken up in ethyl acetate and washed with water 2×, brine, dried over magnesium sulfate and concentrated to give 4-(1-benzothien-2-yl)-1-[2-(trimethylsilyl)ethoxy]methyl-1H-pyrrolo[2,3-b]-pyridine (0.10 gm) as an oil, LC/MS (M+H)+ 381.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US08530485B2 |
|---|
| 出典データセット | uspto-grants-2013_09 |
|---|
| ORD ID | ord-c5d306496ced4dfc9adfe67a5ac25fdb |
|---|
| 出典メモ | uspto-grants-2013_09 |
|---|
