関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Phenol | HCID 996 | — |
| 反応物 | Phosphoric Acid | HCID 1004 | — |
| 反応物 | 2-Tert-Butylphenol | HCID 6923 | — |
| 反応物 | 2,4-Di-tert-butylphenol | HCID 7311 | — |
| 反応物 | 4-tert-Butylphenol | HCID 7393 | — |
| 反応物 | Isobutylene | HCID 8255 | — |
| 溶媒 | Acetic Acid | HCID 176 | — |
| 生成物 | 2,4,6-Tri-tert-butylphenol | HCID 12902 | — |
| 生成物 | 2,6-Di-tert-butylphenol | HCID 31405 | — |
反応手順
A 100 ml-autoclave was charged with 28 g of phenol, 4 g of phosphoric acid and 20 g of acetic acid, and heated at 120° C. Thereto was gradually added 34 g of isobutylene and the mixture was stirred at 120° C. for 3 hours. The reaction mixture consisted of 1.0% of phenol, 14% of 2-tert-butylphenol, 11% of 4-tert-butylphenol and 74% of 2,4-di-tertbutylphenol, when analyzed with gas chromatography as a % area. 2,6-Di-tert-butylphenol and 2,4,6-tri-tert-butylphenol were not formed. Phosphoric acid and acetic acid were removed by washing with water. Distillation at 170° C. gave 44 g of 2,4-di-tert-butylphenol. Each spectra of NMR, MS and IR of the objective compound was identical with those of the standard compound.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US04950810 |
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| 出典データセット | uspto-grants-1990_08 |
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| ORD ID | ord-b1318eb400da47818225dc9005546c14 |
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| 出典メモ | uspto-grants-1990_08 |
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