Synlett 2011(5): 707-711  
DOI: 10.1055/s-0030-1259549
LETTER
© Georg Thieme Verlag Stuttgart ˙ New York

ZnCl2-Catalyzed Intramolecular Cyclization Reaction of 2-Aminochalcones Using Polymer-Supported Selenium Reagent: Synthesis of 2-Phenyl-4-quinolones and 2-Phenyl-2,3-dihydroquinolin-4(1H)-one

E Tang*, Bangzheng Chen, Lianpeng Zhang, Wen Li, Jun Lin
School of Chemical Science and Technology, Yunnan University, Kunming 650091, P. R. of China
Fax: +86(871)5033725; e-Mail: tange@ynu.edu.cn;
Further Information

Publication History

Received 27 November 2010
Publication Date:
15 February 2011 (online)

Zoom Image

Abstract

A new and efficient method for the synthesis of 2-phenyl-4-quinolones and 2-phenyl-2,3-dihydroquinolin-4(1H)-ones is described. The reaction involves ZnCl2-mediated polystyrene-supported selenium-induced intramolecular cyclization of 2-amino­chalcones and subsequent traceless or functionalizing cleavage of selenium linker.