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Ethylene Glycol → Ethyl (2-propyl-1,3-dioxolan-2-yl)acetate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Ethylene Glycol | HCID 174 | — |
| 反応物 | Ethyl orthoformate | HCID 31214 | — |
| 反応物 | Ethyl 3-oxohexanoate | HCID 238498 | — |
| 触媒 | p-Toluenesulfonic acid monohydrate | HCID 521998 | — |
| 溶媒 | Water | HCID 962 | — |
| 生成物 | Ethyl (2-propyl-1,3-dioxolan-2-yl)acetate | HCID 14505110 | 97% |
反応手順
A mixture of ethyl 3-oxohexanoate (5 g, 31.6 mmol), ethylene glycol (3.92 g, 63.2 mmol) and triethyl orthoformate (4.68 g, 31.6 mmol), and p-toluenesulfonic acid monohydrate (544 mg, 2.86 mmol) was stirred at room temperature for 29 hours and 10 minutes. To the reaction mixture, water was added and the mixture was extracted with ethyl acetate. The organic layer was washed with a saturated saline solution, dried over magnesium sulfate, and filtered. The filtrate was concentrated under reduced press-re to obtain the title compound (6.2 g, 97%) as a colorless oil.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US07425634B2 |
| 出典データセット | uspto-grants-2008_09 |
| ORD ID | ord-768326b17c3f4dd5bb13a20fb6733919 |
| 出典メモ | uspto-grants-2008_09 |