%0 Journal Article %J Organic Letters %D 2005 %T Thioureas as ligands in the Pd-catalyzed intramolecular Pauson-Khand reaction %A Yefeng Tang %A Lujiang Deng %A Yangdong Zhang %A Guangbin Dong %A Jia Hua Chen %A Zhen Yang %B Organic Letters %P 1657-1659 %G eng %U http://www.ncbi.nlm.nih.gov/pubmed/15816776 %N 8 %] 000228344200056 %R 10.1021/ol050410y