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 → 3a,4,7,7a-Tetrahydro-1H-4,7-methanoindene-1,3(2H)-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 | Cyclopentadiene | HCID 7612 | — |
| 反応物 | 2-Cyclopentene-1,4-dione | HCID 70258 | — |
| 溶媒 | Benzene | HCID 241 | — |
| 生成物 | 3a,4,7,7a-Tetrahydro-1H-4,7-methanoindene-1,3(2H)-dione | HCID 13587181 | — |
反応手順
A solution of 4-cyclopentene-1,3-dione (5 84g; 0.06 mole) in anhydrous benzene (20ml) was treated with freshly distilled cyclopentadiene (7.3g; 0.122 mole) together with a few crystals of 2,5-di-t-butyl hydroquinone. An immediate reaction ensued with concommitant crystallisation of the product. After standing at room temperature for 3 days the title compound was filtered and recrystallised from methanol, m.p. 183° 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-94edf95b6b2e4bf6a0e10601c5ca5b63 |
| 出典メモ | uspto-grants-1977_01 |