Synthetic and Structural Exploration of [24]Tetrathiacalix[2]arene[2]pyrimidines
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A novel class of two atom bridged metacyclophanes[24]thiacalix[2]arene[2]pyrimidineshas been synthesized via a straightforward SNAr reaction. The conformational properties and intra-annular dimensions of the [24]thiacalix[2]arene[2]pyrimidines were evaluated by X-ray structure analysis and compared with known homothia- and thiacalixarenes. Post-macrocyclization oxidation of the bridging sulfur moieties resulted in a [24]sulfonylcalix[2]arene[2]pyrimidine, which gave access to an unexplored cavity size among sulfonylcalixarenes.
创建时间：
2016-02-20
