関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Acetic Anhydride | HCID 7918 | — |
| 反応物 | 1,3-dimethyl-1H-indazole-4,5-dicarboxylic acid | HCID 22402946 | — |
| 生成物 | 1,3-Dimethyl-1H-indazole-4,5-dicarboxylic anhydride | HCID 54189584 | — |
反応手順
A mixture of 1,3-dimethyl-1H-indazole-4,5-dicarboxylic acid (6.30 g, 26.9 mmol) and acetic anhydride is stirred at reflux temperature for 3 hours, cooled to 5° C. and filtered. The filter cake is air-dried to give the title product as chartreuse needles (4.80 g, 82.5%), mp 214°-215.5° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US05516751 |
|---|
| 出典データセット | uspto-grants-1996_05 |
|---|
| ORD ID | ord-78e7a39351404ae2a23594c95eb484cf |
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| 出典メモ | uspto-grants-1996_05 |
|---|
