化学合成
化学合成
路线1:以2-(4,4-二氟环己基)乙酸乙酯为原料
- 步骤: 将2-(4,4-二氟环己基)乙酸乙酯(3.2g,15.5mmol)溶解于甲醇(5mL)中,加入氢氧化锂(559mg,23.3mmol),室温搅拌反应过夜;反应完成后,用3N盐酸调节反应混合物的pH至4,然后用二氯甲烷萃取;合并有机相,用无水硫酸钠干燥,减压浓缩,得到2-(4,4-二氟环己基)乙酸(3g,100%)为棕色油状物。
参考文献:[1] Patent: US2006/264489, 2006, A1. Location in patent: Page/Page column 78;[2] Patent: US2013/183269, 2013, A1. Location in patent: Paragraph 1216; 1217;[3] Patent: US2015/23913, 2015, A1. Location in patent: Paragraph 1461-1462;[4] Patent: WO2015/5901, 2015, A1. Location in patent: Page/Page column 517; 518;[5] Patent: WO2006/122200, 2006, A1. Location in patent: Page/Page column 53