TfOH/Fe(OTf)<sub>3</sub>
Cocatalyzed Reaction of Arylallenes with Alcohols for Structurally Diverse Indene Derivatives
作者:Congrong Liu、Haiyun Zhang、Lianghui Ding、Juan Liu
DOI:10.1002/cjoc.201800099
日期:2018.8
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
A range of arylallenes undergo carbocation-initiated cyclization reaction with N-benzylic and N-allylic sulfonamides in the presence of 10 mol% ferric chloride to give structurally diverse polysubstituted indenes in good yields with extremely high regioselectivity.