The transition-metal-catalyzed oxidative cross-coupling between two coupling partners with similar structure and electronic characteristics remains a challenge owing to difficulty in suppressing undesired homo-couplings. We herein report a Pd-catalyzed oxidative cross-coupling between two thiophenes under mild reaction conditions. This approach can also be extended to furans. Some notable advantages
具有相似结构和电子特性的两个偶联配偶之间的过渡
金属催化的氧化交叉偶联由于难以抑制不希望的均相偶联而仍然是一个挑战。我们在本文中报道了在温和的反应条件下,两个
噻吩之间的Pd催化的氧化交叉偶联。这种方法也可以扩展到
呋喃。该反应的一些显着优点在于其合成简单,省去了有毒的
锡烷偶联伙伴,并且具有出色的官能团相容性。该协议的特征使其成为构建电子和光电子材料中感兴趣的2,2'-
噻吩-
噻吩键合的理想策略。