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Paper
J. Chem. Soc., Perkin Trans. 2, 2002, 1801 - 1806, DOI: 10.1039/b207850c
Synthesis and trans-
-carotenoid inclusion properties of a new class of water soluble calixarenesMohamed Makha, Ian R. McKinnon and Colin L. Raston
The paper describes the synthesis of water soluble sulfonated calixarenes derived from p-benzylcalix[5,6,7,8]arenes and p-cumylcalix[4,6]arene along with their chlorosulfonyl derivatives. Inclusion phenomena of the sulfonated p-benzyl and p-phenyl calix[5,6]arenes towards carotenoids are also reported; 1H NMR, UV–VIS and light scattering experiments are consistent with a model in which the carotenoid is surrounded by two calixarenes and these supermolecules form large aggregates, 100–150 nm in diameter.
