Large azaacenes: pyridine rings reacting like carbonyl groups.
N,N'-Dihydropentaazapentacenes and -hexacenes displaying terminal pyridine rings are surprisingly easily oxidized by MnO(2) into their corresponding pyridones.
Organisch Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
Jens U
JU
Engelhart
Benjamin D
BD
Lindner
Olena
O
Tverskoy
Frank
F
Rominger
Uwe H F
UH
Bunz