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Hydrochloric Acid → 5,6,7,8-Tetrahydro-3-methoxy5,5,8,8-tetramethyl-2-naphthaldoxime
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Hydrochloric Acid | HCID 313 | — |
| 反応物 | Hydroxylamine HCl | HCID 21645 | — |
| 反応物 | 2-Formyl-5,6,7,8-tetrahydro-3-methoxy-5,5,8,8tetramethylnaphthalene | HCID 14726522 | — |
| 溶媒 | Pyridine | HCID 1049 | — |
| 生成物 | 5,6,7,8-Tetrahydro-3-methoxy5,5,8,8-tetramethyl-2-naphthaldoxime | HCID 86745192 | 97.6% |
反応手順
5 g (20 millimoles) of 5,6,7,8-tetrah-ydro-3-methoxy-5,5,8,8-tetramethyl-2-naphthaldehyde and 2.1 g (30 millimoles) of hydroxylammonium chloride in 32.5 ml of dry pyridine were refluxed for 2 hours. The mixture was then allowed to cool, poured onto water and acidified with concentrated hydrochloric acid, and the precipitate which had separated out was filtered off under suction and dried to give 5.1 g of 5,6,7,8-tetrahydro-3-methoxy-5,5,8,8-tetramethyl-2-naphthaldoxime of melting point 182°-183° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05061705 |
| 出典データセット | uspto-grants-1991_10 |
| ORD ID | ord-faef52b778574b3d92f3d248e73591c4 |
| 出典メモ | uspto-grants-1991_10 |