(信息不足,未明确具体用途)
医药; 农药
合成路线 1(1. 合成:252723-16-3)
产率:90%
合成条件:Stage #1: With n-butyllithium; N,N,N,N,-tetramethylethylenediamine In tetrahydrofuran at -78℃; for 0.05 h; Stage #2: at 20℃; for 4 h; Stage #3: With water; ammonium chloride In tetrahydrofuran
实验步骤:步骤2:4-氯-7-(苯基磺酰基)-7H-吡咯并[2,3-d]嘧啶(3g,12.6mmol,1.0当量)和TMEDA(3.0mL,18.9mmol,1.5)的溶液 在-78℃的THF(120mL)中的eq)中加入n-BuLi(7.5mL,18.9mmol,1.5当量)。 3分钟后,加入C3 / 4I(3.7mL,59.2mmol,4.7当量)。 3小时后,将反应混合物在1小时内温热至室温。 通过加入饱和NH 4 Cl(10mL)淬灭反应。 加入EtOAc(200mL)和水(100mL)。 分离有机层,干燥并浓缩,得到4-氯-6-甲基-7-(苯基磺酰基)-7H-吡咯并[2,3-d]嘧啶,为棕色固体(6.7g,收率90%))。
参考文献:
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