化学合成。
化学合成
合成路线 1(1. 合成:18927-05-4)
产率:100%
合成条件:for 16 h; Heating / reflux
实验步骤:(3-甲氧基苯基)乙酸甲酯; 将25.0g(150ml)(3-甲氧基苯基)乙酸的无水甲醇(250ml)溶液与2ml浓硫酸混合,加热回流16小时。 将冷却的反应溶液真空浓缩,加入冰水中,每次用70ml乙酸乙酯萃取四次。 将合并的有机萃取液用饱和NaCl溶液洗涤,用硫酸镁干燥,真空除去溶剂。 产量:28.3g(100%)无色油状物1H-NMR(DMSOd6):3.61(s,3H),3.64(s,2H),3.74(s,3H),6.80-6.86(m,3H),7.19-7.25。 (m,1 H)。 MS(API-ES,pos)m / z = 181 [M + H] +
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