化工社化工社 化学情報印刷レポート · 研究参考用
Azobenzene → 2-Nitro-2'-hydroxy-3',5'-bis(tert-amyl)azobenzene
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Azobenzene | HCID 2272 | — |
| 反応物 | Dichlone | HCID 8342 | — |
| 反応物 | Fluorenone | HCID 10241 | — |
| 反応物 | Sodium Hydroxide | HCID 14798 | — |
| 反応物 | Phenol, 2-[2-(4-chloro-2-nitrophenyl)diazenyl]-6-(1,1-dimethylethyl)-4-methyl- | HCID 89771 | — |
| 反応物 | (2R,3S,4R,5R)-2,3,4,5,6-pentahydroxyhexanal | HCID 107526 | — |
| 溶媒 | Methanol | HCID 887 | — |
| 溶媒 | Water | HCID 962 | — |
| 生成物 | 2-Nitro-2'-hydroxy-3',5'-bis(tert-amyl)azobenzene | HCID 104111 | — |
| 生成物 | 2-(2-hydroxy-3-t-butyl-5-methylphenyl)-5-chlorobenzotriazole-N-oxide | HCID 14149470 | — |
反応手順
97% sodium hydroxide 8.2 g was added and dissolved in a mixture of methanol 60 ml and water 20 ml. 2-nitro-4-chloro-2'-hydroxy-3'-t-butyl-5'-methylazobenzene 11.6 g was then added to the resultant solution at 50° to 60° C. over 30 minutes while stirring, and thereafter 2,3-dichloro-1,4-naphthoquinone 0.3 g and 9-fluorenone 0.4 g were added to the solution. Glucose 8 g was then added to the resultant mixture at 40° to 50° C. over two hours, and the mixture was stirred for one hour at the same temperature. As this result, almost all of the azobenzene disappeared to produce 2-(2-hydroxy-3-t-butyl-5-methylphenyl)-5-chlorobenzotriazole-N-oxide, thus Process (b) being completed.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04835284 |
| 出典データセット | uspto-grants-1989_05 |
| ORD ID | ord-cb3d7025176148278393ab61baeb5788 |
| 出典メモ | uspto-grants-1989_05 |