Title

Tetraalkylated 2,8,14,20-tetrathiacalix[4]arenes: Novel infinite channels in the solid state

Document Type

Article

Publication Date

11-26-1998

Abstract

The synthesis of new tetraalkylated derivatives of 2,8,14,20- tetrahiacalix[4]arenes was achieved by the refluxing of thiacalixarenes in acetone or acetonitrile with the alkylation agent (R-I, R-Br) in the presence of K2CO3 or Cs2CO3. The structure of the tetraalkylated thiacalix[4]arenes was studied by means of H NMR experiments proving the 1,3- alternate conformation under measurement conditions (CDCl3, room temperature). The same conformation was established by X-ray analysis in the solid state where these derivatives create nice infinite channels.

Publication Source (Journal or Book title)

Tetrahedron Letters

First Page

8915

Last Page

8918

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