4-碘二苯并呋喃作为有机合成中间体,广泛应用于医药和农药领域,可用于构建含碘杂环化合物,参与多种有机反应。
医药; 农药
合成路线 1(1. 合成:65344-26-5)
产率:91%
合成条件:Stage #1: With n-butyllithium In tetrahydrofuran at -78 - 20℃; for 4 h; Stage #2: With iodine In tetrahydrofuran at -78 - 20℃; for 2 h;
实验步骤:将20g(55mmol)二苯并呋喃和200mL四氢呋喃加入到500mL反应器中,并搅拌混合物。 冷却至-78℃后,滴加41mL(66mmol)1.6M正丁基锂,在室温下搅拌4小时。 在-78℃下加入16.7g(66mmol)碘后,将混合物在室温下搅拌2小时。 加入硫代硫酸钠水溶液,用乙酸乙酯和H2O萃取。 减压浓缩有机层,然后重结晶,得到(20.4g)。 (收益率:91%)
参考文献:
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