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Ammonia → HCID 19794224、化合物
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ammonia | HCID 222 | — |
| 反応物 | 4H-pyran-4-one | HCID 7968 | — |
| 反応物 | 6-(4-aminophenyl)-3(2H)-pyridazinone hydrochloride | HCID 12196573 | — |
| 溶媒 | Water | HCID 962 | — |
| 生成物 | HCID 19794224 | HCID 19794224 | — |
反応手順
A stirred mixture of 6-(4-aminophenyl)-3(2H)-pyridazinone hydrochloride (1.5 g), 4H-pyran-4-one (0.71 g), and water (20 ml), was heated under reflux for 2 hours. The pH of the hot solution was adjusted to 8 with aqueous ammonia and the mixture was cooled to give the crude product, 1.84 g, m.p. 338°-340° C. Recrystallisation from aqueous ethanol gave the title compound, 1.4 g, m.p. 339°-341° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05246928 |
| 出典データセット | uspto-grants-1993_09 |
| ORD ID | ord-2e0927e1207d4f81994448ab79173b02 |
| 出典メモ | uspto-grants-1993_09 |