涉及通过氧化加成和银催化的C-H活化形成的炔基金（III）中间体的双金/银催化用于环丙烯的直接炔基化反应。
Dual Gold/Silver Catalysis Involving Alkynylgold(III) Intermediates Formed by Oxidative Addition and Silver-Catalyzed C-H Activation for the Direct Alkynylation of Cyclopropenes.
作者信息
Yang Yangyang, Antoni Patrick, Zimmer Marc, Sekine Kohei, Mulks Florian F, Hu Long, Zhang Lumin, Rudolph Matthias, Rominger Frank, Hashmi A Stephen K
机构信息
Organisch-Chemisches Institut, Heidelberg University, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.
Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
出版信息
Angew Chem Int Ed Engl. 2019 Apr 1;58(15):5129-5133. doi: 10.1002/anie.201812577. Epub 2019 Mar 12.
While gold-mediated synergistic catalytic processes involving transmetalations with other metals are well understood, Au /Au cycles in these reactions are rarely reported. Herein a gold-catalyzed direct alkynylation of cyclopropenes is enabled by two operating catalytic cycles, an oxidative catalytic cycle involving an alkynyl Au complex formed by oxidative addition and one involving a silver-mediated C-H activation.
虽然涉及与其他金属进行金属转移的金介导协同催化过程已得到充分理解，但这些反应中的金/金循环却鲜有报道。在此，环丙烯的金催化直接炔基化反应由两个运行的催化循环实现，一个是氧化催化循环，涉及通过氧化加成形成的炔基金配合物，另一个是涉及银介导的C-H活化的催化循环。
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