Palladium-catalyzedregio- and stereoselective selenoacylation of allenes with selenol esters proceeded to produce functionalized allyl selenides with the acyl moiety at the inner carbon and the SePh group at the terminal carbon in high yields. A mechanism accounting for the observed regio- and stereoselectivities is proposed based on the results of DFT calculations.
Metal Triflate–Catalyzed Se-Se Bond Cleavage and the Selective Additions Under Mild Conditions
作者:Lei Yu、Lingfeng Ren、Rong Guo、Tian Chen
DOI:10.1080/00397911.2010.494813
日期:2011.7.1
Abstract Metal triflate–catalyzed Se-Se bond cleavage would generate selenyl cations, which could add to activated C=C double bond selectively. The reaction conditions were mild and could be easily handled. The cleavage of Se-Se bond in this novel way undermildconditions might expand the view of organic synthesis and facilitate new synthetic strategies.