A Convenient and Efficient Synthesis of Coumarin-Containing Phthalides and Derivatives
作者:Xing-Wen Sun、Guoqiang Lin、Shao-Chun Shen
DOI:10.1055/s-0032-1316871
日期:——
obtained via reactions between 4-hydroxycoumarins (or 4-hydroxy-2-quinolones) with different 2-formylbenzoic acids in water as an environmentally friendly solvent. 4-Aryl substituted derivatives of 3-(4-hydroxy)coumarinylphthalide are obtained in excellent yields by initial conversion into the corresponding triflate and subsequent palladium-catalyzed Suzuki–Miyaura coupling with arylboronic acids. A highly
摘要 开发了一种高效,便捷的方法来获得一系列含有香豆素的邻苯二甲酸酯和衍生物。新型双杂环产品是通过4-羟基香豆素(或4-羟基-2-喹诺酮类)与不同的2-甲酰基苯甲酸在水中作为环境友好溶剂之间的反应获得的。通过初步转化成相应的三氟甲磺酸酯,然后再用钯催化的Suzuki-Miyaura与芳基硼酸偶联,可以以极好的收率获得3-(4-羟基)香豆基邻苯二甲酸酯的4-芳基取代衍生物。 开发了一种高效,便捷的方法来获得一系列含有香豆素的邻苯二甲酸酯和衍生物。新型双杂环产品是通过4-羟基香豆素(或4-羟基-2-喹诺酮类)与不同的2-甲酰基苯甲酸在水中作为环境友好溶剂之间的反应获得的。通过初步转化成相应的三氟甲磺酸酯,然后再用钯催化的Suzuki-Miyaura与芳基硼酸偶联,可以以极好的收率获得3-(4-羟基)香豆基邻苯二甲酸酯的4-芳基取代衍生物。