化学合成;精细化学品;无色纯净液体
化学合成; 精细化学品
合成路线 1(2. 合成:39590-81-3)
产率:66%
合成条件:With sodium hydroxide In tetrahydrofuran; water
实验步骤:步骤A:在0℃下,在1小时内将1,1-环丙烷二羧酸二乙酯(25g,0.13mol)滴加到搅拌的氢化铝锂在四氢呋喃(150mL)中的悬浮液中。加完后,反应混合物再加热回流18小时。将混合物冷却至0℃并依次用水(10g)处理,然后用10%氢氧化钠水溶液(10g)和水(30g)处理。过滤混合物,滤液用碳酸钾干燥并减压浓缩。蒸馏得到(1-羟甲基 - 环丙基) - 甲醇(8.8g,66%收率),为无色粘性油状物:1H NMR(400MHz; CDCl3)δ3.57(4H,s),3.26(2H,s),0.48(4H,s)。
参考文献:
- [1] Organic Letters, 2000, vol. 2, # 15, p. 2323 - 2325 [2] Bulletin of the Chemical Society of Japan, 1980, vol. 53, # 1, p. 146 - 153 [3] European Journal of Medicinal Chemistry, 2016, vol. 124, p. 36 - 48 [4] Journal of Organic Chemistry, 1993, vol. 58, # 15, p. 4122 - 4126 [5] Patent: US2004/54172, 2004, A1 [6] Journal of Organic Chemistry, 1959, vol. 24, p. 1839,1842 [7] Journal of Organic Chemistry, 1956, vol. 21, p. 1487,1491 [8] Patent: WO2005/118575, 2005, A1. Location in patent: Page/Page column 93-94 [9] Patent: WO2008/58118, 2008, A2. Location in patent: Page/Page column 34-35 [10] Patent: WO2016/144848, 2016, A1. Location in patent: Page/Page column 51 [11] Patent: WO2016/144846, 2016, A1. Location in patent: Page/Page column 76 [12] Patent: WO2016/144849, 2016, A1. Location in patent: Page/Page column 41 [13] Patent: WO2016/144847, 2016, A1. Location in patent: Page/Page column 44 [14] Patent: CN106588568, 2017, A. Location in patent: Paragraph 0040; 0045; 0048; 0051; 0054
合成路线 2(2. 合成:39590-81-3)
产率:86%
合成条件:With lithium aluminium tetrahydride In diethyl ether at 0 - 20℃; for 4 h;
实验步骤:实施例XXIII; 方案28; 28-B(1-羟基甲基 - 环丙基) - 甲醇; 在0℃下向二甲基-1,1-环丙烷二羧酸酯28-A(791mg,5.01MMOL)的Et 2 O(20mL)溶液中分批加入氢化铝锂(569mg,15.0MMOL)。将反应混合物在室温下搅拌4小时,并在0℃下用饱和Na 2 SO 4淬灭。过滤沉淀的固体并用THF洗涤。浓缩滤液,并通过柱色谱(EtOAc)纯化,得到440mg(86%)的28-B; 1H NMR(300MHz,CD13)δ4.02(s,2H),3.56(s,4H),0.48(s,4H); MS(ES)m / z:125(M + Na +)。
参考文献:
- [1] Patent: WO2005/30694, 2005, A1. Location in patent: Page/Page column 84-85 [2] Patent: WO2005/12324, 2005, A2. Location in patent: Page/Page column 106-107 [3] Patent: WO2014/209034, 2014, A1. Location in patent: Paragraph 580; 581; 582