Cationic iron salts were found to be good catalysts for intra- and intermolecular addition of carboxylicacids to olefins, which afforded the corresponding esters in good yields.
发现阳离子铁盐是羧酸与烯烃的分子内和分子间加成的良好催化剂,其以良好的产率提供相应的酯。
Brønsted Acid Mediated Heterogeneous Addition Reaction of 1,3-Dicarbonyl Compounds to Alkenes and Alcohols
Efficient Copper(II)-Catalyzed Addition of Activated Methylene Compounds to Alkenes
作者:Yu Li、Zhengkun Yu、Sizhong Wu
DOI:10.1021/jo800836g
日期:2008.7.1
regioselective addition of β-diketones to styrenes, norbornene, cyclic enol ether, and diene has been realized by means of copper(II) triflate as the catalyst. The solvent effect is prominent on the reactions, and the desired addition products were obtained in good to excellent yields only in dioxane or ionic liquid [bmim]PF6. The mechanism suggests that copper(II) triflate activates the enolic O−H