(4-氨基苯基)(4-吗啉基)甲酮主要作为医药中间体或活性成分,用于相关药物的合成研究,其合成方法在多篇学术文献和专利中被报道,具有较高的产率和成熟的工艺路线。
医药
合成路线 1(1. 合成:51207-86-4)
产率:94.53%
合成条件:With palladium 10% on activated carbon; hydrogen In methanol at 20℃; for 4 h;
实验步骤:步骤 - (ii):(4-氨基苯基)(吗啉代)甲酮的合成:向中间体-8a(8.5g,35.9m mol)的甲醇200mL溶液中加入10%Pd / C(850mg)并在H 2气氛下搅拌 在室温下保持4小时。 反应完成后,将反应溶剂通过硅藻土垫过滤并用过量MeOH洗涤。 真空蒸发滤液,得到所需产物,为浅黄色固体(7.0g,94.53%); 1H-NMR(400MHz,DMSO-d6)-7.12(d,2H,J = 8.4Hz),6.55(d,2H,J = 8Hz),5.5(bs,2H),3.66-3.28(m,8H); MS(ES)m / z 207(M + 1)。
参考文献:
- [1] Green Chemistry, 2018, vol. 20, # 1, p. 130 - 135 [2] Organic Letters, 2017, vol. 19, # 1, p. 194 - 197 [3] ACS Catalysis, 2015, vol. 5, # 3, p. 1526 - 1529 [4] Patent: WO2014/125410, 2014, A1. Location in patent: Page/Page column 26; 27 [5] Bioorganic and Medicinal Chemistry Letters, 2018, vol. 28, # 9, p. 1615 - 1620 [6] Bioorganic and Medicinal Chemistry, 2018, vol. 26, # 12, p. 3217 - 3226 [7] Organic Letters, 2016, vol. 18, # 11, p. 2774 - 2776 [8] Organic and Biomolecular Chemistry, 2014, vol. 12, # 28, p. 5082 - 5088 [9] Patent: US2004/87575, 2004, A1 [10] Patent: US2003/13708, 2003, A1 [11] Patent: US2004/110745, 2004, A1 [12] Patent: WO2008/33834, 2008, A1. Location in patent: Page/Page column 67-68 [13] Bioorganic and Medicinal Chemistry Letters, 2010, vol. 20, # 9, p. 2740 - 2744 [14] Patent: WO2010/71885, 2010, A1. Location in patent: Page/Page column 459 [15] Journal of Agricultural and Food Chemistry, 2013, vol. 61, # 3, p. 517 - 522 [16] Green Chemistry, 2015, vol. 17, # 2, p. 898 - 902 [17] ChemCatChem, 2017, vol. 9, # 6, p. 1128 - 1134
合成路线 2(2. 合成:51207-86-4)
产率:46.54%
合成条件:With N-ethyl-N,N-diisopropylamine; HATU In N,N-dimethyl-formamide at 0 - 20℃; for 12 h;
实验步骤:化合物177.2的合成。 向177.1(0.5g,3.72mmol,1.0当量)的DMF(10ml)溶液中加入吗啉(0.409g,4.74mmol,1.3当量)和HATU(2.8g,7.29mmol,2.0当量)。 将反应混合物冷却至0℃。 在0℃下加入DIPEA(1.8ml,32.8mmol,3.0当量)。将反应混合物在室温下搅拌12小时。将完成的混合物倒入水中,用EtOAC萃取产物。 合并有机层,用Na 2 SO 4干燥,减压浓缩,得到粗产物,用柱色谱法纯化,得到纯的177.2(0.350g,46.54%)。 MS(ES):m / z 206.2 [M + H] +。
参考文献:
- [1] Patent: WO2015/131080, 2015, A1. Location in patent: Paragraph 00953; 00954 [2] Journal of Medicinal Chemistry, 2012, vol. 55, # 11, p. 5536 - 5545 [3] European Journal of Medicinal Chemistry, 2017, vol. 131, p. 107 - 125