作者:Samuel Attah Egu、Uchechukwu Chris Okoro、Efeturi Abraham Onoabedje
DOI:10.1002/jhet.2745
日期:2017.3
acids provide coupled compounds in high yields. The arylation of 6,7‐dibromoquinoline‐5,8‐dione and 6,7‐dichloroquinoline‐5,8‐dione with 4‐bromophenyl boronic acid supplied 6,6′‐(1,4‐phenylene)bis(7‐bromoquinoline‐5,8‐dione) and (4‐(6‐(4‐(6‐chloro‐5,8‐dihydroquinolin‐7‐yl)phenyl)‐5,8‐dihydroquinolin‐7‐yl)phenyl)boronic acid respectively, in addition to the expected coupled compounds in moderate yields
据报道,通过钯/磷介导的Suzuki-Miyaura交叉偶联反应合成了6,7-二溴喹啉-5,8-二酮和6,7-二氯喹啉-5,8-二酮的新衍生物。6,3-二溴喹啉-5,8-二酮和6,7-二氯喹啉-5,8-二酮中间体是由8-羟基喹啉分三步反应制得的。6,7-二溴喹啉-5,8-二酮和6,7-二氯喹啉-5,8-二酮与各种芳基硼酸的钯催化反应可提供高收率的偶联化合物。6,6-二溴喹啉-5,8-二酮和6,7-二氯喹啉-5,8-二酮与4-溴苯基硼酸的芳基化反应提供了6,6'-(1,4-亚苯基)双(7-溴喹啉) -5,8-二酮)和(4-(6-(4-(6-氯-5,8-二氢喹啉-7-基)苯基)-5,8-二氢喹啉-7-基)苯基)硼酸,除了预期的偶联化合物以外,产量也中等。另外,Pd(0)/ PPh3使7-氯-6-(4-硝基苯基)喹啉-5,8-二酮和7-氯-6-苯基喹啉-5,8-二酮通过Heck反应合成。合成靶分