Beucher Hélène, Schörgenhumer Johannes, Merino Estíbaliz, Nevado Cristina
Department of Chemistry, University of Zurich Winterthurerstrasse 190 Zurich CH 8057 Switzerland
Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Andrés M. del Río (IQAR), Facultad de Farmacia Alcalá de Henares 28805 Madrid Spain.
Chem Sci. 2021 Oct 28;12(45):15084-15089. doi: 10.1039/d1sc03814a. eCollection 2021 Nov 24.
A chelation-assisted oxidative addition of gold(i) into the C-C bond of biphenylene is reported here. The presence of a coordinating group (pyridine, phosphine) in the biphenylene unit enabled the use of readily available gold(i) halide precursors providing a new, straightforward entry towards cyclometalated (N^C^C)- and (P^C)-gold(iii) complexes. Our study, combining spectroscopic and crystallographic data with DFT calculations, showcases the importance of neighboring, weakly coordinating groups towards the successful activation of strained C-C bonds by gold.
本文报道了一种螯合辅助的金（I）向联苯C-C键的氧化加成反应。联苯单元中配位基团（吡啶、膦）的存在使得可以使用易于获得的金（I）卤化物前体，为环金属化的（N^C^C）-和（P^C）-金（III）配合物提供了一种新的、直接的合成方法。我们的研究将光谱和晶体学数据与密度泛函理论计算相结合，展示了相邻的弱配位基团对于金成功活化张力C-C键的重要性。
