66673-40-3
基本信息
(R)-(-)-5-羟甲基-2-吡咯烷酮
(-)-D-PYROGLUTAMOL
(R)-(-)-2-PYRROLIDONE-5-YL-METHANOL
(R)-(-)-5-(HYDROXYMETHYL)-2-PYRROLIDINONE
(R)-5-(HYDROXYMETHYL)-2-PYRROLIDINONE
(R)-(-)-5-(HYDROXYMETHYL)-2-PYRROLIDONE
(R)-5-HYDROXYMETHYL-PYRROLIDIN-2-ONE
H-D-Pyr-ol
5-(Hydroxymethyl)-2-pyrrolidinone
5-Hydroxymethylpyrrolidin-2-one
物理化学性质
| 熔点 | 83-85 °C(lit.) |
| 沸点 | 147-149 °C0.06 mm Hg(lit.) |
| 密度 | 1.1808 (rough estimate) |
| 折射率 | -31 ° (C=5, EtOH) |
| 闪点 | 147-149°C/0.06m |
| 储存条件 | Keep in dark place,Sealed in dry,Room Temperature |
| 溶解度 | Chloroform, Dimethylformamide, Water |
| 酸度系数(pKa) | 14.35±0.10(Predicted) |
| 形态 | 结晶粉末或薄片 |
| 颜色 | 白色到黄色 |
| 旋光度 (Optical Rotation) | [α]20/D 31°, c = 5 in ethanol |
| BRN | 5728422 |
| InChI | 1S/C5H9NO2/c7-3-4-1-2-5(8)6-4/h4,7H,1-3H2,(H,6,8)/t4-/m1/s1 |
| InChIKey | HOBJEFOCIRXQKH-SCSAIBSYSA-N |
| SMILES | OC[C@H]1CCC(=O)N1 |
| CAS 数据库 | 66673-40-3(CAS DataBase Reference) |
安全数据
| 危险性符号(GHS) | ![]() GHS07 |
| 警示词 | 警告 |
| 危险性描述 | H315-H319-H335 |
| 防范说明 | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| 危险品标志 | Xi |
| 危险类别码 | R36/37/38 |
| 安全说明 | S26-S36 |
| WGK Germany | 3 |
| F | 3-10 |
| 海关编码 | 29337900 |
| 存储类别 | 11 - Combustible Solids |
| 危险性类别 | Eye Irrit. 2 Skin Irrit. 2 STOT SE 3 |
制备方法
64700-65-8
66673-40-3
方案1,步骤B:制备(R)-(-)-5-(羟甲基)-2-吡咯烷酮(3) 向含有(R)-5-氧代吡咯烷-2-羧酸甲酯(中间体2,13.2 g)的甲醇(100 mL)溶液中,在0℃下分批加入硼氢化钠(10.5 g,278 mmol)。反应混合物在0℃下持续搅拌直至反应完成,随后加入乙酸(3 mL)以淬灭反应。反应混合物经浓缩后,残余物通过硅胶柱层析纯化,采用甲醇-氯仿(1:9,v/v)作为洗脱剂,得到目标产物(12.9 g,收率97%)为无色固体。薄层色谱(TLC)显示Rf值为0.33(展开剂系统:甲醇-氯仿,1:9,v/v);核磁共振氢谱(1H-NMR,CDCl3)δ:7.17(s,1H),3.92(s,1H),3.85-3.75(m,1H),3.64-3.40(m,2H),2.42-2.35(m,2H),2.2-2.05(m,1H),1.88-1.7(m,1H)。
参考文献:
[1] Patent: WO2014/15246, 2014, A1. Location in patent: Paragraph 0447-0448
[2] Patent: WO2014/144610, 2014, A1. Location in patent: Paragraph 0368; 0377; 0378
[3] Patent: WO2015/9991, 2015, A2. Location in patent: Paragraph 0555-0556
[4] Patent: US2016/60216, 2016, A1. Location in patent: Paragraph 0371-0372
[5] Patent: KR2015/130326, 2015, A. Location in patent: Page/Page column 0409-0411
常见问题列表
图谱信息
(R)-(-)-5-羟甲基-2-吡咯烷酮(66673-40-3)核磁图(1HNMR)(R)-(-)-5-羟甲基-2-吡咯烷酮(66673-40-3)Raman光谱(R)-(-)-5-羟甲基-2-吡咯烷酮(66673-40-3)红外图谱(IR)(R)-(-)-5-羟甲基-2-吡咯烷酮(66673-40-3)傅里叶红外光谱图知名试剂公司产品信息
(R)-(-)-5-羟甲基-2-吡咯烷酮价格(试剂级)
| 报价日期 | 产品编号 | 产品名称 | CAS号 | 包装 | 价格 |
| 2026/07/06 | L18358 | (R)-(-)-5-(羟基甲基)-2-吡咯酮, 99%
(R)-(-)-5-(Hydroxymethyl)-2-pyrrolidinone, 99% | 66673-40-3 | 1g | 365元 |
| 2026/07/06 | 33356 | (R)-(-)-5-(羟基甲基)-2-吡咯酮 (R)-(-)-5-Hydroxymethyl-2-pyrrolidinone, 98%, Thermo Scientific Chemicals | 66673-40-3 | 1g | 374元 |
| 2026/06/06 | H1241 | (R)-5-(羟甲基)-2-吡咯烷酮 (R)-5-(Hydroxymethyl)-2-pyrrolidinone | 66673-40-3 | 1G | 20元 |
