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3-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one → 1-ethyl-3-(4-hydroxyphenyl)-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 3-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one | HCID 58577708 | — |
| 触媒 | Palladium | HCID 23938 | — |
| 溶媒 | Methanol | HCID 887 | — |
| 生成物 | 1-ethyl-3-(4-hydroxyphenyl)-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one | HCID 58577368 | 82.2% |
反応手順
A mixture of 3-[4-(benzyloxy)phenyl]-1-ethyl-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (120 mg) and 10% palladium on carbon (40 mg) in MeOH (10 mL) was hydrogenated under balloon pressure at room temperature for 2 h. The catalyst was removed by filtration and the filtrate was concentrated in vacuo to give 1-ethyl-3-(4-hydroxyphenyl)-6-methoxy-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (75 mg) as white crystals.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US09226921B2 |
| 出典データセット | uspto-grants-2016_01 |
| ORD ID | ord-58b4ceac33d84bd78a37dbae1e0291dd |
| 出典メモ | uspto-grants-2016_01 |