Volume 36, Issue 8 pp. 737-742
Concise Report

TfOH/Fe(OTf)3 Cocatalyzed Reaction of Arylallenes with Alcohols for Structurally Diverse Indene Derivatives

Congrong Liu

Corresponding Author

Congrong Liu

School of Environment Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu, 211167 China

Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026 China

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Haiyun Zhang

Haiyun Zhang

School of Environment Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu, 211167 China

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Lianghui Ding

Lianghui Ding

School of Environment Engineering, Nanjing Institute of Technology, 1 Hongjingdadao, Nanjing, Jiangsu, 211167 China

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Juan Liu

Juan Liu

Department of Chemistry, University of Science and Technology of China, Hefei, Anhui, 230026 China

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First published: 04 May 2018
Citations: 1

Abstract

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.

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