Stereoselective formation of tertiary and quaternary carbon centers via inverse conjugate addition of carbonucleophiles to allenic esters
作者:Ana Lúcia Cardoso、Ana Matos Beja、Manuela Ramos Silva、Jesús M. de los Santos、Francisco Palacios、Paulo E. Abreu、Alberto A.C.C. Pais、Teresa M.V.D. Pinho e Melo
DOI:10.1016/j.tet.2010.08.002
日期:2010.9
Stereoselective inverse conjugate addition of carbonucleophiles to allenoates bearing a chiral auxiliary in the ester moiety afforded optically active α,β-unsaturated carboxylic esters bearing a new stereocenter at the δ position. The rationalization of the observed selectivity was supported by semi-empirical molecular orbital calculations.