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 → rac-(3aR,4S,7R,7aS)-3a,4,7,7a-tetrahydro-4,7-ethanoindene-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 | 1,3-Cyclohexadiene | HCID 11605 | — |
| 反応物 | 2-Cyclopentene-1,4-dione | HCID 70258 | — |
| 溶媒 | Benzene | HCID 241 | — |
| 生成物 | rac-(3aR,4S,7R,7aS)-3a,4,7,7a-tetrahydro-4,7-ethanoindene-1,3-dione | HCID 53663301 | — |
反応手順
A solution of 4-cyclopentene-1,3-dione (7.0g; 0.073 mole) in dry benzene (20ml.) was added to 1,3-cyclohexadiene (12g; 0.15 mole). After addition of a few crystals of 2,5-ditert-butyl hydroquinone the stoppered mixture was stood at room temperature for 4 days. Removal of the solid and recrystallisation from methanol gave the adduct m.p. 264°.
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-6c34422ce8e7441bb88be0522ae7724d |
| 出典メモ | uspto-grants-1977_01 |