Max-Planck-Institut für Kohlenforschung, 45470, Mülheim/Ruhr, Germany.
Angew Chem Int Ed Engl. 2019 Jun 24;58(26):8851-8856. doi: 10.1002/anie.201904256. Epub 2019 May 17.
The unusual geminal hydrogenation of a propargyl alcohol derivative with [Cp RuCl] as the catalyst entails formation of pianostool ruthenium carbenes in the first place; these reactive intermediates can be intercepted with tethered alkenes to give either cyclopropanes or cyclic olefins as the result of a formal metathesis event. The course of the reaction is critically dependent on the substitution pattern of the alkene trap.
以[Cp RuCl]为催化剂,对炔丙醇衍生物进行非寻常的偕二氢加成,首先生成钢琴凳型钌卡宾;这些反应性中间体可以与连接的烯烃相互作用,通过形式的复分解反应,得到环丙烷或环状烯烃。反应的进程取决于烯烃捕捉剂的取代模式。