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