化学合成。
化学合成
合成路线 1(1. 合成:5470-75-7)
产率:67%
合成条件:Stage #1: With iron; acetic acid In water for 1.50 h; Heating / reflux Stage #2: With sodium hydroxide In water
实验步骤:合成方法2; 6-氯 - 喹啉-8-基胺(实施例化合物4的前体);向搅拌的6-氯-8-硝基 - 喹啉(合成方法1; 1.00g,4.79mmol)在水(20mL)中的悬浮液中加入乙酸(0.82mL,14.3mmol)和铁粉(1.61g,28.8)。毫摩尔)。将混合物加热至接近回流1.5小时,然后冷却至室温。继续搅拌,用固体氢氧化钠(0.65g,16.3mmol)和乙酸乙酯(30mL)处理反应。加入硅藻土(30mL)并将浆液抽滤。滤饼用乙酸乙酯冲洗。将合并的滤液用碳酸氢钠水溶液洗涤,干燥(硫酸钠)并浓缩。所得粘性棕色油状物经硅胶快速色谱纯化(己烷/乙酸乙酯),得到0.57g(67%)黄色固体产物:1H NMR(CDCl3)δ8.71(dd,J = 4.2,1.5Hz,1H ),7.94(dd,J = 8.3,1.5 Hz,1H),7.36(dd,J = 8.3,4.2 Hz,1H),7.09(d,J = 2.1 Hz,1H),6.84(d,J = 2.1 Hz) ,1H),5.09(br s,2H)ppm。
参考文献:
- [1] Monatshefte fuer Chemie, 1994, vol. 125, # 6/7, p. 723 - 730 [2] Monatshefte fuer Chemie, 1994, vol. 125, # 6/7, p. 723 - 730 [3] Patent: US2007/254894, 2007, A1. Location in patent: Page/Page column 21 [4] Patent: US2003/32645, 2003, A1 [5] Journal of the American Chemical Society, 1946, vol. 68, p. 1577 [6] Proceedings - Indian Academy of Sciences, Section A, 1951, # 34, p. 43,46 [7] Journal fuer Praktische Chemie (Leipzig), 1894, vol. <2> 49, p. 365 [8] Journal of the American Chemical Society, 1946, vol. 68, p. 1577 [9] Proceedings - Indian Academy of Sciences, Section A, 1951, # 34, p. 43,46 [10] Journal of the American Chemical Society, 1946, vol. 68, p. 1577 [11] Zeitschrift fuer Naturforschung, B: Chemical Sciences, 1992, vol. 47, # 2, p. 288 - 300 [12] Patent: EP1147083, 2004, B1. Location in patent: Page 40 [13] Patent: US2007/27160, 2007, A1. Location in patent: Page/Page column 55 [14] Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 19, p. 1105