A Pd-catalyzed direct cross-coupling of 3-bromocoumarins with heteroarenes provided an efficient route to synthesizing 3-heteroarylcoumarins. The reaction scope for the transformation was fairly broad, affording modest to good yields of various 3-heteroarylcoumarin scaffolds, which are privileged structures and prevalent motifs in many biologically active compounds and fluorophores.
钯催化的 3-
溴香豆素与杂
环戊烯的直接交叉偶联为合成 3-杂芳基
香豆素提供了一条有效途径。该转化反应的范围相当广泛,可获得各种 3-杂芳基
香豆素支架,产率从中等到较高,这些支架是许多
生物活性化合物和荧光团中的特优结构和流行主题。