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2-Chloroethanol → 4-(2-Hydroxyethoxy)benzenecarboxylic acid
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | 2-Chloroethanol | HCID 34 | — |
| 反応物 | 4-Hydroxybenzoic Acid | HCID 135 | — |
| 触媒 | Potassium Iodide | HCID 4875 | — |
| 生成物 | 4-(2-Hydroxyethoxy)benzenecarboxylic acid | HCID 4312254 | — |
反応手順
That is, as the reaction formula described below, ethylene chlorohydrin and 4-hydroxybenzoic acid are refluxed under heating in an aqueous alkali solution using potassium iodide as a catalyst to obtain 4-(2-hydroxyethoxy)benzoic acid, the product is then reacted with vinyl (meth)acrylate in THF (tetrahydrofuran) having added thereto lipase PS and a small amount of p-methoxyphenol to form 4-(2-propenoyloxyethoxybenzoic acid) (meth)acrylate, and by esterifying the (meth)acrylate thus obtained in methylene chloride with an isosorbide derivative in the presence of DCC (dicyclohexylcarbodiimide) and DMAP (dimethylaminopyridine), the desired product of the formula (b1) can be obtained.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US06248259B1 |
| 出典データセット | uspto-grants-2001_06 |
| ORD ID | ord-a1a674910f5f4077baf2608ddf1496be |
| 出典メモ | uspto-grants-2001_06 |