Ruthenium-Catalyzed Regioselective Cyclization of Aromatic Ketones with Alkynes: An Efficient Route to Indenols and Benzofulvenes
作者:Ravi Kiran Chinnagolla、Masilamani Jeganmohan
DOI:10.1002/ejoc.201101364
日期:2012.1
substituted acetophenones to afford the corresponding indenol derivatives in a highly regioselective manner. The amount of silversalt plays a key role in the reaction. When the amount of silversalt exceeded more than 8 mol-% in the presence of 2 mol-% [RuCl2(p-cymene)}2], a different type of dehydration product, namely a benzofulvene derivative, started to appear. In the presence of 20 mol-% AgSbF6, substituted
Concise Synthesis of Polysubstituted Carbohelicenes by a C−H Activation/Radical Reaction/C−H Activation Sequence
作者:Jiangliang Yin、Jingsong You
DOI:10.1002/anie.201811023
日期:2019.1.2
the merging of C−H activation and radical chemistry, enabling rapid access to a structurally diverse family of fused carbohelicenes through the fusion of α‐acetylnaphthalenes with alkynes under oxidative conditions. This cascade process exhibits exquisite chemoselectivity and regioselectivity. The reaction pathway was analyzed by intermediate separations, control experiments, radical trapping, EPR, MALDI‐TOF‐MS