We are increasing the diversity of reactivity at the methylene bridge position of tetramethoxy-p-tert-butylcalix[4]arene.  One avenue has been to attach alkyl tethers that end with functional groups (halo, azido, amine, alkyne), while a second has been the introduction of alkenes directly at the methylene bridge.  Finally, we seek to prepare a 2-halotetramethoxy-p-tert-butylcalix[4]arene to introduce electrophilic character at the methylene-bridge position.  Novel di- and tricalixarenes have also been obtained.

Reactive tethers, unsaturation, and leaving groups at the methylene bridge of tetramethoxy-<i>p</i>-<i>tert</i>-butylcalix[4]arene

239th National Meeting (2010)

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