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| | (R)-(-)-α-メトキシフェニル酢酸 製品概要 |
| | (R)-(-)-α-メトキシフェニル酢酸 物理性質 |
| 融点 | 66-68 °C(lit.) | | 沸点 | 164-166°C 18mm | | 比旋光度 | -160.4 º (C=1, MEOH) | | 比重(密度) | 1.1708 (rough estimate) | | 屈折率 | -147 ° (C=0.5, EtOH) | | 闪点 | 164-166°C/18mm | | 貯蔵温度 | 2-8°C | | 溶解性 | Chloroform, Ethanol, Methanol | | 外見 | Fine Crystalline Powder or Needles | | 酸解離定数(Pka) | 3.10±0.10(Predicted) | | 色 | White | | 光学活性 (optical activity) | [α]20/D -150±3°, c = 0.5% in ethanol | | BRN | 3589257 | | CAS データベース | 3966-32-3(CAS DataBase Reference) | | NISTの化学物質情報 | (R)-(-)-«alpha»-methoxyphenylacetic acid(3966-32-3) |
| | (R)-(-)-α-メトキシフェニル酢酸 Usage And Synthesis |
| 外観 | 白色～ほとんど白色粉末～結晶 | | 化学的特性 | white fine crystalline powder or needles | | 使用 | (R)-(-)-α-Methoxyphenylacetic Acid is a useful synthetic intermediate. It is used as a reactant in the synthesis of dopamine receptor agonists. It can also be used to prepare hydroxytriamides as potent γ-secretase inhibitors. | | 一般的な説明 | (R)-(?)-α-Methoxyphenylacetic acid is a chiral derivatizating agent, which is employed for derivatizing enantiomers into diastereoisomers. | | 純化方法 | Purify the acids by recrystallising from *C6H6/pet ether (b 80-100o). [Neilson & Peters J Chem Soc 1519 1962, Weizmann et al. J Am Chem Soc 70 1153 1948, Pirie & Smith J Chem Soc 338 1932, NMR: Dale & Mosher J Am Chem Soc 9 5 512 1973, for resolution: Roy & Deslongchamps Can J Chem 63 651 1985, Trost et al. J Am Chem Soc 1 0 8 4974 1986.] The racemic mixture has m 72o, b 121-122o/0.4mm, 165o/18mm (from pet ether) [Braun et al. Chem Ber 6 3 2847 1930]. [Beilstein 10 IV 566.] |
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