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Hydrochloric Acid → 2-(2H-Benzotriazol-2-yl)-6-chloromethyl-4-(1,1,3,3-tetramethyl-butyl)-phenol
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Formaldehyde | HCID 712 | — |
| 反応物 | Octrizole | HCID 62485 | — |
| 触媒 | Zincchloride | HCID 3007855 | — |
| 溶媒 | Acetic Acid | HCID 176 | — |
| 生成物 | 2-(2H-Benzotriazol-2-yl)-6-chloromethyl-4-(1,1,3,3-tetramethyl-butyl)-phenol | HCID 68273173 | — |
反応手順
2-(2H-Benzotriazol-2-yl)-4-(1,1,3,3-tetramethyl-butyl)phenol (45.0 g, 140 mmol) is dissolved in acetic acid (200 mL) at 90° C. Zinc chloride (2.0 g, 14 mmol) and paraformaldehyde (18 g, 600 mmol) are added and HCl gas is passed through the reaction mixture for 12 hours at 90° C. The product, which precipitates after cooling to room temperature, is filtered off, washed with cold pentane and dried at 60° C. under vacuum to yield 36 g of 2-(2H-Benzotriazol-2-yl)-6-chloromethyl-4-(1,1,3,3-tetramethyl-butyl)-phenol.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US08883829B2 |
| 出典データセット | uspto-grants-2014_11 |
| ORD ID | ord-5d8960d93a87475bb6d1bad0107b651b |
| 出典メモ | uspto-grants-2014_11 |