CuBr Catalyzed C–N cross coupling reaction of purines and diaryliodonium salts to 9-arylpurines
作者:Hong-Ying Niu、Chao Xia、Gui-Rong Qu、Qian Zhang、Yi Jiang、Run-Ze Mao、De-Yang Li、Hai-Ming Guo
DOI:10.1039/c1ob05333g
日期:——
CuBr was found to be an efficient catalyst for the C–N cross coupling reaction of purine and diaryliodonium salts. 9-Arylpurines were synthesized in excellent yields with short reaction times (2.5 h). The method represents an alternative to the synthesis of 9-arylpurines viaCu(II) catalyzed C–N coupling reaction with arylboronic acids as arylating agents.
CuBr被发现是嘌呤盐和二芳基碘鎓盐的C–N交叉偶联反应的有效催化剂。9-芳基嘌呤以极短的反应时间(2.5h)以优异的产率合成。该方法是通过以芳基硼酸为芳基化剂的Cu(II)催化的C–N偶联反应合成9-芳基嘌呤的替代方法。