A comparison of versatile counter anions was investigated by means of a variety of well-known test reactions representing the key reactivity patterns of homogeneous gold catalysis, the catalytic activity was monitored by GC and 1H NMR. As previously reported, the counter anion influence is usually more pronounced than the corresponding ligand effect. Due to this, Hashmi and coworkers focused on the investigation of counter anions so far not included from investigation of homogeneous gold-catalyzed reactions (Schießl et al., Adv. Synthesis and Catalysis, 2018. DOI: https://doi.org/10.1002/adsc. 201800629). The examinations using so far neglected counter anions (BArF4)−, [B(C6F5)4]−, [Al(OC(CF3)3)4]− and [B(C6F5)3(OAcF)]− showed surpassing or at least similar catalytic activities as the commonly used counter anions. The expanded use of counter anions can occupy an important role in future concerning catalyst optimization in gold catalysis.

中文翻译：

---

近期文献亮点

通过代表均相金催化的关键反应模式的各种众所周知的测试反应，研究了通用抗衡阴离子的比较，催化活性由 GC 和 1 H NMR 监测。如前所述，反阴离子的影响通常比相应的配体效应更明显。因此，Hashmi 及其同事专注于研究迄今为止未包括在均相金催化反应研究中的反阴离子（Schießl 等人，Adv. Synthesis and Catalysis，2018 年。DOI：https://doi.org/ 10.1002/adsc. 201800629）。使用迄今为止被忽略的抗衡阴离子 (BArF4)-、[B(C6F5)4]-、[Al(OC(CF3)3)4]- 和 [B(C6F5)3(OAcF)]- 的检查显示超过或等于与常用的抗衡阴离子的催化活性最不相似。