Host-Guest Properties of New Water-Soluble Calixarenes Derived from p-(Chloromethyl)calixarenes
Water-soluble, cationic, and anionic calixarenes were synthesized from p-(chloromethyl)calixarene as a key intermediate: the formation of aqueous host-guest-type complexes was confirmed by spectroscopic methods.
Rare-earth-metal solvent extraction with calixarene phosphates
Several phosphate esters in which calixarenes act as either uni- or bi-dentate ligands towards PV have been investigated as solvent-extraction agents for the rare-earth metals (La to Lu, excluding Pm, plus Y).Extraction of picrate salts into di
Harrowfield, Jack M.,Mocerino, Mauro,Peachey, Brendan J.,Skelton, Brian W.,White, Allan H.
p. 1687 - 1700
(2007/10/03)
Molecular design of calixarene-based host molecules for inclusion of C60 in solution
Calix[6]arenes bearing N,N-dialkylaniline units or m-phenylenediamine units were synthesized to capture C60 in organic solution: the association constants (7.9-1.1 × 102 dm3mol-1) were the largest values obtained so far, indicating that calix[6]arene acts as an excellent platform to facilitate the cooperative action of the donor groups.
CHLOROMETHYLATION OF CALIXARENES AND SYNTHESIS OF NEW WATER SOLUBLE MACROCYCLIC HOSTS
The chloromethylation of calixarene 1a and of the methyl ethers of calixarene 1b and calixarene 1c , using chloromethyl n-octyl ether and SnCl4 in chloroform at room temperature has been performed in good yield for the first time.The chloromethylated products 2a-c have been used as intermediates to introduce on calixarenes phosphonic acid groups which render these macrocycles water soluble and potentially useful in Host Guest Chemistry.