C. Montagnemarcellin et al., SYNTHESIS OF A SERIES OF C-14-LABELED CAL IX[8]ARENES, Journal of labelled compounds & radiopharmaceuticals, 36(3), 1995, pp. 301-306
This paper describes syntheses of paratertiobutyl calix[8]arene, calix
[8]arene and parasulfonic calix[8]arene acid, labelled with C-14 on th
e methylene position. Parasulfonic calix[8]arene acid when injected to
rats, allowed to know the hydrosoluble calixarenes distribution in or
ganism. Initial labelled reactant is Amersham formaldehyde. H-1.NMR sp
ectra of each compound and assembly of the first two syntheses are des
cribed.