Imidazopyridine and pyrimidinopyridine systems from perfluorinated pyridine derivatives
作者:Matthew W. Cartwright、Graham Sandford、Jamaal Bousbaa、Dmitrii S. Yufit、Judith A.K. Howard、John A. Christopher、David D. Miller
DOI:10.1016/j.tet.2007.05.016
日期:2007.7
gave a [6,6]-fused pyrimidinopyridine system arising from initial nucleophilic substitution at the C-3 position of the pyridine ring followed by intramolecular cyclization onto the pendant cyano group. The systems prepared by this annelation methodology further demonstrate the utility of perfluorinated heterocyclic substrates for the synthesis of heterocyclic scaffolds that possess multiple functionality