Synthesis 2007(10): 1459-1464  
DOI: 10.1055/s-2007-966048
PAPER
© Georg Thieme Verlag Stuttgart · New York

Ruthenium(II)-Porphyrin Catalyzed Selective N-Imidation of Aromatic Nitrogen Heterocycles

Yan Jianga, Guo-Chuan Zhoua, Guang-Li Hea, Ling He*a, Ju-Lian Lia, Shi-Long Zhenga,b
a Department of Medicinal Chemistry and Key Laboratory of Drug-Targeting of Education Ministry of China, West China School of Pharmacy, Sichuan University, No. 17, Section 3, South Renmin Road, Chengdu, Sichuan 610041, P. R. of China
Fax: +86(28)85502940; e-Mail: lhe2001@sina.com; e-Mail: szheng@gsu.edu;
b Department of Chemistry, Georgia State University, Atlanta, GA 30302-4908, USA
Further Information

Publication History

Received 19 January 2007
Publication Date:
02 May 2007 (online)

Abstract

Ruthenium(II)-porphyrin (0.5 mol%) catalyzed N-imidations of aromatic nitrogen heterocycles with phenyl(tosylimino)iodinane under mild conditions were achieved in good yields (<94%). The effects of substituent, catalyst, temperature, and solvent on the reaction have been investigated. It was found that the catalyst significantly affected the yield and selectivity of imidation reaction for aromatic nitrogen heterocycles at 30 °C.