Synthetic Approach to Polysubstituted Furans: An Efficient Addition/Oxidative Cyclization of Alkynoates and 1,3-Dicarbonyl Compounds
Weibing Liu, Huanfeng Jiang*, Min Zhang and Chaorong Qi
*School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China, Email: jianghfscut.edu.cn
W. Liu, H. Jiang, M. Zhang, C. Qi, J. Org. Chem., 2010, 75, 966-968.
DOI: 10.1021/jo902375k (free Supporting Information)
A reliable method for the direct construction of polysubstituted furans involves Sn(II)- and Cu(I)-promoted addition/oxidative cyclization of alkynoates and 1,3-dicarbonyl compounds in the presence of 2,3-dichloro-5,6-dicyanobenzoquinone.
see article for more examples
H. Cao, H. Jiang, W. Yao, X. Liu, Org. Lett., 2009, 11, 1931-1933.