We report a new approach to 2,3-diarylbenzo[b]thiophenes based on the nickel-catalyzed Suzuki–Miyaura cross-coupling/palladium-catalyzed decarboxylative arylation sequence of 3-chloro-2-methoxycarbonylbenzo[b]thiophenes, which are readily accessible from the corresponding cinnamic acids. In addition, this methodology can be applied to the concise synthesis of π-extended 2,3,6,7-tetraarylbenzo[1,2-b;4
我们报告了一种基于
镍催化的3-
氯-
2-甲氧基羰基
苯并[ b ]
噻吩的
镍催化的铃木-宫浦交叉偶联/
钯催化的
脱羧芳基化序列的2,3-二芳基
苯并[ b ]
噻吩的新方法可从相应的
肉桂酸中获得。另外,该方法可以应用于简并的π-扩展的2,3,6,7-四芳基
苯并[1,2- b ; 4,5- b' ]二
噻吩的合成。还描述了它们的光学性质。