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2,4-Bis(1,1-dimethylethyl)-6-[2-(2-nitrophenyl)diazenyl]phenol → 2-(2'-Hydroxy-3'5-di-tert-butylphenyl) benzotriazole
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 2,4-Bis(1,1-dimethylethyl)-6-[2-(2-nitrophenyl)diazenyl]phenol | HCID 104110 | — |
| 触媒 | Palladium | HCID 23938 | — |
| 溶媒 | Isopropanol triethylamine | HCID 21183856 | — |
| 生成物 | 2-(2'-Hydroxy-3'5-di-tert-butylphenyl) benzotriazole | HCID 77455 | 77% |
反応手順
When using the general procedure of Example 5, a 23% by weight suspension of 2-nitro-2'-hydroxy-3',5'-di-tert-butylazobenzene in isopropanol/triethylamine (1/0.18) was hydrogenated at 45° C. at 1 atmosphere pressure for 3 hours in the presence of 3% of a 5% palladium on charcoal catalyst the above noted product was obtained in a yield of 77%.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04230867 |
| 出典データセット | uspto-grants-1980_10 |
| ORD ID | ord-6db687a322b24b6da166884f270153dc |
| 出典メモ | uspto-grants-1980_10 |