化学合成。
化学合成
合成路线 1(1. 合成:125414-41-7)
产率:100%
合成条件:at 20℃; for 16 h;
实验步骤:向2-壬烷-1,3-二醇(1.00g,0.1mol)的EtOH(100mL)溶液中加入二碳酸二叔丁酯(24.0g,0.1mol)。 将反应在室温下搅拌16小时。 将反应溶液真空浓缩至干,得到(1,3-二羟基丙烷-2-基)氨基甲酸叔丁酯(21.0g,收率:100%),为白色固体。
参考文献:
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合成路线 2(2. 合成:125414-41-7)
产率:49%
合成条件:With triethylamine In tetrahydrofuran at 0 - 20℃; for 1.75 h;
实验步骤:制备J(2-羟基-1-羟甲基 - 乙基) - 氨基甲酸叔丁酯将H 2 OH 2 - 氨基-1,3-丙二醇(5.0g,54.9mmol)溶于无水THF(175ml)和三乙胺中 (7.7毫升)补充说。 将溶液在冰浴中冷却,并在15分钟内分批加入碳酸二叔丁酯(11.98g,54.9mmol)。 将溶液温热至环境温度并搅拌90分钟。 蒸发溶剂,加入水(250ml),将产物萃取到乙酸乙酯(4×125ml)中。 将合并的有机物用盐水洗涤,用硫酸镁干燥,过滤并蒸发。 通过从热乙酸乙酯 - 汽油(1:3)中重结晶分离产物,得到闪亮的薄片5.18g(49%收率)。通过1H NMR(300MHz,CDCl 3)确认结构:1.44(s,9H),3.08- 3.17(m,1H),3.61-3.84(m,4H)。
参考文献:
- [1] Patent: WO2009/60021, 2009, A1. Location in patent: Page/Page column 21-22