関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Dichlone | HCID 8342 | — |
| 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 | — |
| 生成物 | 2-(2-hydroxy-3-t-butyl-5-methylphenyl)-5-chlorobenzotriazole-N-oxide | HCID 14149470 | — |
反応手順
97% sodium hydroxide 9.6 g was added to methanol 100 ml, and was stirred at 65° C. for 30 minutes. After cooling to 50° C., 2-nitro-4-chloro-2'-hydroxy-3'-t-butyl-5'-methylazobenzene 11.6 g was added to the resultant mixture over 30 minutes, and thereafter 2,3-dichloro-1,4-naphthoquinone 0.7 g was added. Glucose 8 g was added to the resultant mixture at 40° to 45° C. over one hour, and the mixture was stirred for one hour at 40° to 45° C. As this result, almost all of the azobenzenes disappeared to produce 2-(2'-hydroxy-3'-t-butyl-5'-methylphenyl)-5-chlorobenzotriazole-N-oxide, thus the reaction of Process (b) being completed.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US04835284 |
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| 出典データセット | uspto-grants-1989_05 |
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| ORD ID | ord-3a240b3f143a45b2ab420563fe6ede0e |
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| 出典メモ | uspto-grants-1989_05 |
|---|
