Copper-Catalyzed Cross-Coupling Reactions of Nucleobases with Arylboronic Acids: An Efficient Access toN-Arylnucleobases
作者:Yang Yue、Zhang-Guo Zheng、Bo Wu、Chuan-Qin Xia、Xiao-Qi Yu
DOI:10.1002/ejoc.200500589
日期:2005.12
An efficient avenue for the direct N-arylation of nucleobases with arylboronic acids that is catalyzed by simple copper salts was discovered. The N-arylnucleobases were obtained in excellent yields at room temperature within 45 min when methanol and water were used as a mixed solvent. Under these conditions, the coupling reaction tolerates both electron-donating and electron-withdrawing substituents
发现了通过简单的铜盐催化核碱基与芳基硼酸直接 N-芳基化的有效途径。当使用甲醇和水作为混合溶剂时,在室温下 45 分钟内以优异的产率获得 N-芳基核碱基。在这些条件下,偶联反应可以耐受苯基硼酸的邻位、间位或对位上的给电子和吸电子取代基,并以中等至极好的产率得到相应的偶联产物。实验结果表明,该路线是合成N-芳基碱基的最有效、最简便、最温和的方法。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)