化工社化工社 化学情報印刷レポート · 研究参考用
2,5-Di-tert-butylhydroquinone → 5,6-Dimethyl cis-3a,4,7,7a-tetrahydroindane-1,3-dione
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 2,5-Di-tert-butylhydroquinone | HCID 2374 | — |
| 反応物 | 2,3-Dimethyl-1,3-butadiene | HCID 10566 | — |
| 反応物 | 2-Cyclopentene-1,4-dione | HCID 70258 | — |
| 溶媒 | Benzene | HCID 241 | — |
| 生成物 | 5,6-Dimethyl cis-3a,4,7,7a-tetrahydroindane-1,3-dione | HCID 13587178 | — |
反応手順
A solution of 4-cyclopentene-1,3-dione (5.48g; 0.06 mole) and 2,3-dimethyl butadiene (10.4g; 0.127 mole) in dry benzene (20ml) were treated with a few crystals of 2,5-di-t-butyl hydroquinone and allowed to stand at ambient temperature for 4 days. After refluxing for 15 mins the mixture was cooled and the pale orange solid filtered. Recrystallisation from benzene, methanol afforded the title product as a white solid, m.p. 157°-158° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04005219 |
| 出典データセット | uspto-grants-1977_01 |
| ORD ID | ord-042502f6f7cc4aa09349c5beddc03164 |
| 出典メモ | uspto-grants-1977_01 |