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Synthesis 1999; 1999(1): 69-71
DOI: 10.1055/s-1999-3677
short paper
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A Facile Synthesis of Calix[4]quinone Crown-4-Ethers

Chuan-Feng Chen* , Qi-Yu Zheng, Zhi-Tang Huang
  • *Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100080, P. R of China; Fax +86(10)62 56 95 64; E-mail: huangzt@public.bta.net.cn
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Publication Date:
31 December 1999 (online)

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Diamide-calix[4]crown-4-ether 3, diester-calix[4]-crown-4-ether 5 and calix[4]-crown-4-ether 7 were conveniently oxidized by sodium perborate tetrahydrate in trifluoroacetic acid to afford the diquinone 4 and 6 and monoquinone 8, respectively. The structures of the calix[4]quinones were established by IR, MS, 1H NMR, 13C NMR and elemental analysis.

calix[4]crown - oxidation - sodium perborate tetrahydrate - calix[4]quinone

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