Pyrido[3,2-b][1,4]oxazine and pyrido[2,3-b][1,4]benzoxazine systems from tetrafluoropyridine derivatives
作者:Graham Sandford、Rachel Slater、Dmitrii S. Yufit、Judith A.K. Howard、Antonio Vong
DOI:10.1016/j.jfluchem.2014.05.003
日期:2014.11
Pyrido[3,2-b][1,4]oxazine and pyrido[2,3-b][1,4]benzoxazine systems were synthesised by annelation reactions involving highly fluorinated pyridine derivatives and nitrogen and oxygen centred difunctional nucleophiles by sequential regioselective nucleophilic aromatic substitution processes.