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2,2'-(5-Hydroxy-1,3-phenylene)bis(propan-2-ol) → 3,5-Bis(1-methylethyl)phenol
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 2,2'-(5-Hydroxy-1,3-phenylene)bis(propan-2-ol) | HCID 22660333 | — |
| 触媒 | HCID 178418390 | HCID 178418390 | — |
| 溶媒 | Hydrochloric Acid | HCID 313 | — |
| 溶媒 | Ethanol | HCID 702 | — |
| 生成物 | 3,5-Bis(1-methylethyl)phenol | HCID 93104 | 97.3% |
反応手順
To a solution of 5-hydroxy-α,α,α′,α′-tetramethyl-1,3-benzenedimethanol (20.0 g, 95.1 mmol) in ethanol (600 mL), concentrated hydrochloric acid (12.0 mL) and a 10% palladium-carbon catalyst (11.0 g) were added, and the mixture was stirred under hydrogen atmosphere for 22 hours at room temperature. The reaction mixture was subjected to filtration, and the filtrate was concentrated under reduced pressure, to thereby yield a white solid. The thus-obtained solid was crystallized from hexane, to thereby yield 16.5 g of 3,5-diisopropylphenol as colorless needles (yield 97.3%).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06806395B2 |
| 出典データセット | uspto-grants-2004_10 |
| ORD ID | ord-72d8ee25c369452891b9524d80abc868 |
| 出典メモ | uspto-grants-2004_10 |