Kj. Lee et al., Synthesis of crown ethers based on 9,9-bis-(4-hydroxyphenyl)fluorene and structural determination by X-ray single crystallography, B KOR CHEM, 22(10), 2001, pp. 1101-1104
We report the synthesis and characterization of [38], [57], [76] and [48]-m
embered crown ethers including bis-(hydroxyphenyl)fluorene in the macroring
. Four crown ethers 1-4 are characterized by MALDI-mass spectral data and H
-1-NMR data. Also, structural determination of [38]-membered crown ether 1
has been performed by X-ray crystallography.