Synthesis 2009(3): 483-487  
DOI: 10.1055/s-0028-1083304
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Efficient Catalytic Activity of Copper/Aluminum Hydrotalcite in Diaryl Ether Synthesis

B. Sreedhar*, R. Arundhathi, M. Amarnath Reddy, M. Lakshmi Kantam
Indian Institute of Chemical Technology, Inorganic and Physical Chemistry Division, Hyderabad 500 007, India
Fax: +91(40)2716092; e-Mail: sreedharb@iict.res.in;
Further Information

Publication History

Received 28 August 2008
Publication Date:
09 January 2009 (online)

Abstract

A simple copper/aluminum hydrotalcite (Cu/Al-HT) catalyzed arylation of phenols with aryl iodides afforded the corresponding diaryl ethers in moderate to excellent yields. This ligand-free Cu/Al-HT catalyzed coupling of aryl iodides with phenols resulted in high yields of diaryl ethers in the absence of an additive. The catalyst was quantitatively recovered from the reaction by simple filtration and reused for a number of cycles.