Cross-Coupling of Alkenyl/Aryl Carboxylates with Grignard Reagent via Fe-Catalyzed C−O Bond Activation
作者:Bi-Jie Li、Li Xu、Zhen-Hua Wu、Bing-Tao Guan、Chang-Liang Sun、Bi-Qin Wang、Zhang-Jie Shi
DOI:10.1021/ja907281f
日期:2009.10.21
Iron-catalyzed cross-coupling of alkenyl/aryl carboxylates with primary alkyl Grignard reagent was described. This reaction brought a new family of electrophiles to iron catalysis. The combination of an inexpensive carboxylate electrophile and an iron catalyst would generate ample advantages.
Ligand‐Controlled Regio‐ and Stereoselective Addition of Carboxylic Acids Onto Terminal Alkynes Catalyzed by Carbonylruthenium(0) Complexes
作者:Sze Tat Tan、Wai Yip Fan
DOI:10.1002/ejic.201000579
日期:2010.10
alkynes was catalyzed by mononuclear ruthenium(0) complexes to give enol esters in high yields. By using ligands with different electronic properties, product selectivity was achieved. E-enol esters were preferentially produced when tricarbonyl(η 4 -diene)ruthenium complexes were used; while geminal enol esters were produced when tricarbonylbis(phosphane)-ruthenium complexes were used.