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Calixarene-Templated Synthesis of Heteracalixarenes
M. H. Patel, P. S. Shrivastav*
Gujarat University, Ahmedabad, India
23 March 2009 (online)
A synthesis for sulfur-bearing calixarenes (thiacalixarenes) is presented. Pre-ordering of the individual phenol units of the thiacalixarenes is achieved by covalent bonding to a pre-existent calixarene template. Other metal-templated synthetic approaches for this kind of heteracalixarenes require a much more rigorous maintenance of reaction conditions in large-scale syntheses.