関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Hydroquinone | HCID 785 | — |
| 反応物 | 1,3-Butadiene | HCID 7845 | — |
| 反応物 | 1,2-Dimethoxy-4-(2-nitrovinyl)benzene | HCID 709688 | — |
| 溶媒 | Toluene | HCID 1140 | — |
| 生成物 | (+/-)-trans-1,2-DI methoxy-4-(2-nitrocyclohex-4-enyl)benzene | HCID 53874256 | 76.3% |
反応手順
50.0 g of 3,4-dimethoxy-ω-nitrostyrene and 1.0 g (9.1 mmol) of hydroquinone are suspended in 200 ml of abs. toluene and treated at -70° C. with 55.0 g (1.02 mol) of liquid 1,3-butadiene. The mixture is stirred at 160° C. for 6 days in an autoclave and then cooled. Some of the solvent is distilled off in vacuo, and the resulting precipitate is filtered off with suction and recrystallized in ethanol. M.p.: 113.5-115.5° C.; yield 76.3% of theory.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US06127378 |
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| 出典データセット | uspto-grants-2000_10 |
|---|
| ORD ID | ord-80b19b11bbcd4405bbfa02d15544a6ef |
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| 出典メモ | uspto-grants-2000_10 |
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