Synthesis 2014; 46(19): 2585-2590
DOI: 10.1055/s-0034-1378346
paper
© Georg Thieme Verlag Stuttgart · New York

ipso-Iodocyclization of para-Substituted 4-Aryl-1-alkenes Leading to 3-Iodo-1-azaspiro[4.5]deca-6,9-diene-2,8-diones

Cui-Yan Wu
a   College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. of China
b   Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, P. R. of China   Fax: +86(731)88713642   Email: jhli@hnu.edu.cn
,
Guo-Bo Deng
a   College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. of China
,
Ming Hu
a   College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. of China
,
Wen-Ting Wei
a   College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. of China
,
Jin-Heng Li*
a   College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P. R. of China
› Author Affiliations
Further Information

Publication History

Received: 07 April 2014

Accepted after revision: 28 May 2014

Publication Date:
08 July 2014 (online)


Abstract

A new, mild route for the assembly of 3-iodo-1-azaspiro[4.5]deca-6,9-diene-2,8-diones via an electrophilic ipso-cyclization strategy is presented. In the presence of iodine monochloride, water, and sodium bicarbonate, a variety of N-arylacrylamides underwent the intramolecular electrophilic ipso-cyclization reaction to afford the corresponding 3-iodo-1-azaspiro[4.5]deca-6,9-diene-2,8-diones in moderate to good yield.

Supporting Information