| 英文名 | 2,3-Dichlorobenzoic acid |
|---|---|
| 类型 | 芳香族化合物 |
| CAS号 | 50-45-3 |
| 物理性质 | M 191.0, m 168.3℃, 169-170℃, pK25 2.67. |
| 提纯方法 | Aromatic acid impurities (to <0.05%) can be removed via the (±)-α-methylbenzylamine salt as described for 2,4-dichlorobenzoic acid [Ley & Yates Organic Process Research & Development 12 120 2008.] Crystallise the acid from H2O, aqueous EtOH, or 30% aqueous AcOH and several times from *C6H6, then dry it in vacuo at 40℃ overnight. The methyl ester has m 35-39℃. [Hope & Riley J Chem Soc 123 2478 1923, Lock Monatsh Chem 90 687 1959, Shorter & Mather J Chem Soc 4744 1961, Beilstein 9 II 228, 9 IV 998.] |
| 相关文献 | 暂无权限 |
扩展信息
