Author/Authors :
Lenka and Labuta، نويسنده , , Jan and Hill، نويسنده , , Jonathan P. and Elsegood، نويسنده , , Mark R.J. and Ariga، نويسنده , , Katsuhiko، نويسنده ,
Abstract :
Topologically asymmetric compounds, important as chiral nanoscale building blocks, were synthesized using stepwise N-alkylation on tetrakis(3,5-di-t-butyl-4-oxocyclohexadien-2,5-yl) porphyrinogen as revealed by X-ray crystallographic studies on a porphyrinogen molecule bearing four different N-substituents.
