Synthesis 2013; 45(24): 3387-3391
DOI: 10.1055/s-0033-1339929
paper
© Georg Thieme Verlag Stuttgart · New York

Copper/Imidazolium/TEMPO-Catalyzed Aerobic Oxidation of Benzylic Alcohols­ in Water

Congyan Chen
Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, P. R. of China   Fax: +86(571)88273314   eMail: chenwzz@zju.edu.cn
,
Bo Liu
Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, P. R. of China   Fax: +86(571)88273314   eMail: chenwzz@zju.edu.cn
,
Wanzhi Chen*
Department of Chemistry, Zhejiang University, Xixi Campus, Hangzhou 310028, P. R. of China   Fax: +86(571)88273314   eMail: chenwzz@zju.edu.cn
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Publikationsverlauf

Received: 30. Juli 2013

Accepted after revision: 21. September 2013

Publikationsdatum:
09. Oktober 2013 (online)


Abstract

Various imidazolium salts bearing hydrophilic groups were prepared that reacted with copper powder to afford water-soluble­ copper complexes of N-heterocyclic carbenes. These copper complexes can catalyze the selective oxidation of benzyl alcohols to the corresponding aldehydes in water at room temperature without the need for a base.

Supporting Information