作为有机合成中间体,用于医药相关研究与制备。
医药
合成路线 1(1. 合成:33348-34-4)
产率:88%
合成条件:With dihydrogen peroxide; iodine In methanol at 20℃; for 48 h;
实验步骤:在室温下,向4-(氨基苄腈)(2.4g,20mmol)和-30%H 2 O 2(使用前未滴定)的MeOH(30ml)溶液中加入12(5.05g,12mmol)的MeOH(50ml)溶液。 将温度和所得混合物搅拌48小时,同时每天加入新鲜的H 2 O 2(2ml)。 减压浓缩混合物,用饱和Na 2 S 2 O 3溶液处理直至大部分颜色消失。 将形成的固体滤出,用EtOAc稀释至300ml,用饱和的H 2 O,盐水洗涤,用无水MgSO 4干燥,过滤,将滤液蒸发至干。 通过从EtOH中结晶纯化残余物,得到标题化合物(3g)。 将残余物从CH 2 Cl 2 /己烷的混合物中重结晶,得到更多的标题化合物(1.4g)。 总收率4.4克(88%)。 1 H NMR(CDClg)7.87(d,1H,J = 1.8Hz); 7.37(dd,1H,J = 1.8,8.4),6.68(d,1H,J = 8.4Hz),4.62(宽s,2H)。
参考文献:
- [1] Journal of the American Chemical Society, 2008, vol. 130, # 43, p. 14339 - 14345 [2] European Journal of Organic Chemistry, 2001, # 24, p. 4607 - 4613 [3] Organic Letters, 2005, vol. 7, # 13, p. 2543 - 2546 [4] Bioorganic and Medicinal Chemistry Letters, 2010, vol. 20, # 9, p. 2722 - 2725 [5] Patent: WO2014/63199, 2014, A1. Location in patent: Page/Page column 56 [6] Angewandte Chemie - International Edition, 2018, vol. 57, # 25, p. 7528 - 7532 [7] Angew. Chem., 2018, vol. 130, # 25, p. 7650 - 7654,5 [8] Asian Journal of Chemistry, 2011, vol. 23, # 1, p. 41 - 43 [9] Journal of Medicinal Chemistry, 2002, vol. 45, # 16, p. 3497 - 3508 [10] Bioorganic and Medicinal Chemistry, 2009, vol. 17, # 24, p. 8149 - 8160 [11] Journal of Medicinal Chemistry, 2005, vol. 48, # 18, p. 5823 - 5836 [12] Chemical Communications, 2017, vol. 53, # 24, p. 3481 - 3484 [13] Journal of Medicinal Chemistry, 1994, vol. 37, # 21, p. 3655 - 3662 [14] Patent: WO2012/80221, 2012, A1. Location in patent: Page/Page column 89 [15] Patent: US2013/274260, 2013, A1. Location in patent: Paragraph 0653-0654 [16] Patent: WO2010/142801, 2010, A1. Location in patent: Page/Page column 190 [17] Journal of the Chemical Society - Perkin Transactions 1, 1999, # 4, p. 529 - 534 [18] Bioorganic and Medicinal Chemistry Letters, 2002, vol. 12, # 15, p. 2019 - 2022 [19] Bioorganic and Medicinal Chemistry Letters, 2003, vol. 13, # 24, p. 4385 - 4388 [20] Journal of Organic Chemistry, 2002, vol. 67, # 18, p. 6395 - 6405 [21] Angewandte Chemie - International Edition, 2007, vol. 46, # 12, p. 2074 - 2077 [22] Patent: US6482982, 2002, B1 [23] Journal of Organic Chemistry, 2015, vol. 80, # 21, p. 10806 - 10816 [24] Synthesis (Germany), 2016, vol. 48, # 6, p. 855 - 864 [25] Patent: WO2016/46782, 2016, A1. Location in patent: Page/Page column 139; 138 [26] Patent: WO2016/55947, 2016, A1. Location in patent: Page/Page column 122
合成路线 2
产率:36%
合成条件:With iodine; silver sulfate In ethanol at 20℃; for 18 h;
实验步骤:通用程序:将碘(1当量)加入到搅拌的硫酸银(1当量)和苯胺(1当量)的乙醇(6.21mL / mmol)混合物中。然后将反应混合物在室温下搅拌18小时,并用硅藻土过滤。减压浓缩溶液,残余物在乙酸乙酯和饱和硫代硫酸钠水溶液之间分配。用盐水洗涤有机层,用硫酸镁干燥并减压浓缩。通过硅胶快速色谱法纯化粗残余物,得到取代的2-碘 - 苯胺。根据方法D步骤I,用碘(1.58g; 6.21mmol),硫酸银(1.94g; 6.21mmol)和4-(三氟甲基)苯胺(0.8mL; 6.21mmol)制备2-碘-4-(三氟甲基)苯胺。 )在乙醇(40mL)中。通过硅胶快速色谱法(洗脱液2至40%乙酸乙酯的庚烷溶液)纯化粗残余物,得到1.08g(61%)2-碘-4-(三氟甲基)苯胺,为红色油状物。 1H NMR(DMSO-d6)δ7.80(s,1H),7.38(d,1H),6.82(d,2H),5.93(s,2H)。
参考文献: