1409941-00-9Relevant articles and documents
TfOH/Fe(OTf)3 Cocatalyzed Reaction of Arylallenes with Alcohols for Structurally Diverse Indene Derivatives
Liu, Congrong,Zhang, Haiyun,Ding, Lianghui,Liu, Juan
, p. 737 - 742 (2018/07/29)
The indene moiety is an important unit because of its presence in many chemical catalysts, functional materials and biologically relevant molecules. Herein, we report a facile reaction of arylallenes with benzylic or allylic alcohols through TfOH/Fe(OTf)3 cocatalyzed cleavage of sp3 carbon-oxygen. In the presence of 5 mol% TfOH and 5 mol% Fe(OTf)3, a range of arylallenes undergo carbocation initiated cyclization reaction with alkyl alcohols to give structurally diverse polysubstituted indenes in good to excellent yields. H2O is the sole byproduct that makes this transformation highly atom-economic and environmentally benign.