用于医药相关研究(如生物有机化学领域的药物分子合成或结构修饰)
医药
合成路线 1(1. 合成:1016258-66-4)
产率:99%
合成条件:Stage #1: With lithium hexamethyldisilazane In tetrahydrofuran at -78℃; for 1 h; Stage #2: at -78℃; for 1 h;
实验步骤:在-78℃下,将六甲基二硅基胺基锂(1M 20mL,20mmol)滴加到4-氰基哌啶-1-羧酸叔丁酯(2.1g,10mmol)的无水THF(30mL)溶液中。 将所得混合物在该温度下搅拌1小时,然后在-78℃下加入氯甲酸乙酯(2.2g,20mmol)并在该温度下搅拌1小时。 用碳酸氢钠水溶液(1M 30mL)淬灭反应,并用乙酸乙酯(100mL×3)萃取,将合并的有机层用盐水(20mL)洗涤,经无水硫酸钠干燥,过滤并浓缩。 通过二氧化硅柱色谱法(用10-25乙酸乙酯的石油醚溶液洗脱)纯化粗产物,得到产物,为无色油状物(2.8g,99)。 LCMS(ESI)m / z 183.1 [M-99] +。
参考文献:
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