Synlett 2013; 24(13): 1643-1648
DOI: 10.1055/s-0033-1339316
letter
© Georg Thieme Verlag Stuttgart · New York

Rh(I)-Catalyzed Carbon–Carbon Double-Bond Formation by Coupling of (Quinolin-8-yl)methanone with Arylaldehyde Tosylhydrazone

Yexia Zhang
Department of Chemistry, College of Science, Tianjin University, Tianjin 300072, P. R. of China   Fax: +86(22)27403475   Email: wjh@tju.edu.cn
,
Jingjing Wang
Department of Chemistry, College of Science, Tianjin University, Tianjin 300072, P. R. of China   Fax: +86(22)27403475   Email: wjh@tju.edu.cn
,
Jianhui Wang*
Department of Chemistry, College of Science, Tianjin University, Tianjin 300072, P. R. of China   Fax: +86(22)27403475   Email: wjh@tju.edu.cn
› Author Affiliations
Further Information

Publication History

Received: 11 April 2013

Accepted after revision: 05 June 2013

Publication Date:
17 July 2013 (online)


Abstract

An alternative method for the direct arylvinylation of (quinolin-8-yl)methanone with substituted N′-benzylidene-4-methyl­benzenesulfonohydrazide is described. The desired 3-aryl-1-(quinolin-8-yl)prop-2-en-1-one products are obtained in high yields through the catalytic reaction of (quinolin-8-yl)methanone and N′-arylidene-4-methylbenzenesulfonohydrazide (2 equiv) with [Rh(PPh3)3Cl] (10 mol%), Ag2O (0.5 equiv), and Cs2CO3 (2 equiv) at 130 °C for 48 hours. Two plausible mechanisms involving C–H activation and migratory insertion of the carbene into the rhodium–carbon bond were proposed to explain the formation of the product.