Synthesis 2014; 46(04): 503-509
DOI: 10.1055/s-0033-1340464
paper
© Georg Thieme Verlag Stuttgart · New York

One-Pot Synthesis of Isoxazolines from Aldehydes Catalyzed by Iodobenzene

Liuquan Han
College of Chemical Engineering and Materials Sciences, Zhejiang University of Technology, Hangzhou 310032, P. R. of China   Fax: +86(571)88320238   Email: jieyan87@zjut.edu.cn
,
Bijun Zhang
College of Chemical Engineering and Materials Sciences, Zhejiang University of Technology, Hangzhou 310032, P. R. of China   Fax: +86(571)88320238   Email: jieyan87@zjut.edu.cn
,
Changbin Xiang
College of Chemical Engineering and Materials Sciences, Zhejiang University of Technology, Hangzhou 310032, P. R. of China   Fax: +86(571)88320238   Email: jieyan87@zjut.edu.cn
,
Jie Yan*
College of Chemical Engineering and Materials Sciences, Zhejiang University of Technology, Hangzhou 310032, P. R. of China   Fax: +86(571)88320238   Email: jieyan87@zjut.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 24 October 2013

Accepted after revision: 25 November 2013

Publication Date:
12 December 2013 (online)


Abstract

A convenient one-pot, three-step procedure for the synthesis of isoxazolines starting from aldehydes has been developed involving catalytic cycloaddition between nitrile oxides and alkenes, in which iodobenzene is used as the catalyst for the in situ generation of a hypervalent iodine intermediate. In this approach, the aldehydes are first transformed with hydroxylamine sulfate into aldoximes, which are then oxidized to nitrile oxides by the in situ generated hypervalent iodine intermediate; finally, a 1,3-dipolar cycloaddition between the nitrile oxides and alkenes occurs to provide the isoxazolines in moderate to good yields.