Alkoxyl radical addition to acceptor-substituted carbon–carbon double bonds
作者:Irina Kempter、Andreas Groß、Jens Hartung
DOI:10.1016/j.tet.2012.08.083
日期:2012.12
α-position to the acceptor group. In intramolecular competition experiments, alkoxyl radicals add similarly fast to a cyano-substituted double bond than to a terminal alkene, but by a factor >25 faster to an enolether. The nucleophilic component of alkoxyl radical reactivity opens an interesting new access to tetrahydrofuryl amino acids via C,O-cyclization, as shown by synthesis of a N,O-protected 5-p