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HRID 326438作成日：2026年10月26日
Indane-1,3-dione, 2-(3-hydroxyphenyl)- → 6-(1,3-Dioxoindan-2-ylidene)-2-oxo-3-(4-amino-3,5-dimethylphenyl)-2,6-dihydrobenzofuran
https://huagongshe.com/reaction/326438
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Indane-1,3-dione, 2-(3-hydroxyphenyl)- | HCID 617192 | — |
| 反応物 | 4-Amino-3,5-dimethylphenyltartronic acid | HCID 20092331 | — |
| 溶媒 | Acetic Acid | HCID 176 | — |
| 生成物 | 6-(1,3-Dioxoindan-2-ylidene)-2-oxo-3-(4-amino-3,5-dimethylphenyl)-2,6-dihydrobenzofuran | HCID 20092352 | 38% |
反応手順
4-Amino-3,5-dimethylphenyltartronic acid (2.1 parts), 2-(3-hydroxyphenyl)-1,3-indandione (1.3 parts) and glacial acetic acid (125 parts) were stirred under reflux for 2 hours. The reaction mixture was cooled to 20° C. and the precipitated solid was recovered by filtration, washed with methanol and dried to give 6-(1,3-dioxoindan-2-ylidene)-2-oxo-3-(4-amino-3,5-dimethylphenyl)-2,6-dihydrobenzofuran (0.9 parts, 38%), m.pt. >250° C. λmax (CH2Cl2)=656nm.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US05268490 |
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| 出典データセット | uspto-grants-1993_12 |
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| ORD ID | ord-c3c6f2fe10d64a5db16f7edfb37b40f6 |
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| 出典メモ | uspto-grants-1993_12 |
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