The quasi-homo-anomeric interaction in substituted tetrahydropyranyl radicals: Structure and kinetics of formation
作者:Athelstan L.J Beckwith、Peter J Duggan
DOI:10.1016/s0040-4020(98)00178-1
日期:1998.4
-2-yl radicals (8 and 9) indicate that these species preferentially adopt conformations in which the orientation of the ester group allows maximum overlap between the SOMO, the lone pair on the ring oxygen, and the σ∗ orbital of the CO bond. These observations support earlier proposals that the same type of stabilising interaction affects the conformations of more complex glycosyl radicals. The rates