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Water → 6-benzyloxy-2,2-dimethyl-2H-chromen
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Water | HCID 962 | — |
| 反応物 | p-Toluenesulfonic acid | HCID 6101 | — |
| 反応物 | 6-Benzyloxy-2,2-dimethylchroman-4-ol | HCID 10869827 | — |
| 溶媒 | Toluene | HCID 1140 | — |
| 生成物 | 6-benzyloxy-2,2-dimethyl-2H-chromen | HCID 10901546 | 84.4% |
反応手順
A solution of 9.6 g (33.8 mmol) of 6-benzyloxy-2,2-dimethylchroman-4-ol and 0.2 g of p-toluenesulfonic acid in 85 ml of toluene was heated under reflux on a water separator for 1 h. After cooling, the mixture was washed twice with sodium bicarbonate solution, dried over magnesium sulfate and concentrated i. vac., giving 7.6 g of 6-benzyloxy-2,2-dimethyl-2H-chromen.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06008245 |
| 出典データセット | uspto-grants-1999_12 |
| ORD ID | ord-9a35112c0a6d4d98abb3bbe4701f6622 |
| 出典メモ | uspto-grants-1999_12 |