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Sodium Carbonate → (Z)-1,3-dihydro-4-(4-hydroxyphenyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2H-indol-2-one
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Sodium Carbonate | HCID 10340 | — |
| 反応物 | 4-Hydroxyphenylboronic acid | HCID 2734360 | — |
| 反応物 | (Z)-1,3-dihydro-4-bromo-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2H-indol-2-one | HCID 18359293 | — |
| 溶媒 | 1,2-Dimethoxyethane | HCID 8071 | — |
| 生成物 | (Z)-1,3-dihydro-4-(4-hydroxyphenyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2H-indol-2-one | HCID 9951621 | 52% |
反応手順
Using Method S above, 4-hydroxyphenyl boronic acid (85.0 mg, 0.62 mmol) (see Gilman, supra) was coupled with (Z)-4-bromo-1,3-dihydro-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2H-indol-2-one (150 mg, 0.41 mmol) (Starting Material 6) using DPPFPdCl2 (17 mg) (Aldrich) as catalyst in aqueous 2M Na2CO3 (0.42 mL, 0.84 mmol) and DME (15 mL) at reflux for 1 day to give (Z)-1,3-dihydro-4-(4-hydroxyphenyl)-3-[(3-methoxy-1H-pyrrol-2-yl)methylene]-5-nitro-2H-indol-2-one (yield: 11 0 mg, 52%).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06307056B1 |
| 出典データセット | uspto-grants-2001_10 |
| ORD ID | ord-f2690117b6634c73a5f3c1b4edf3150d |
| 出典メモ | uspto-grants-2001_10 |