H. Graubaum et al., POLYAZACALIX[5]ARENES - SYNTHESIS AND NMR INVESTIGATIONS, Journal fur praktische Chemie, Chemiker-Zeitung, 339(3), 1997, pp. 266-271
The polyazacalix[5]arenes 5a-f were easily prepared by cyclisation of
cyanuric chloride derivatives 3a-d und 4a-b. These macrocycles contain
two phenylene and three 1,3,5-triazine units. The derivatisation of r
eactive chlorine-containing macrocycles 5 with amines, diamines and me
thanol gave compounds 6a-e. The structures and conformations of these
novel macrocyclic ring systems have been investigated by various NMR m
ethods.