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Synlett 1998; 1998(3): 269-270
DOI: 10.1055/s-1998-1643
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A New Intermolecular Photochemical Approach to Calix[4]arene Synthesis

Yukihiro Okada* , Masatoshi Hagihara, Masatoshi Mineo, Jun Nishimura
  • *Department of Chemistry, Gunma University, Tenjin-cho Kiryu 376, Japan
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Publikationsdatum:
31. Dezember 2000 (online)

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Calix[4]arene analogs 4a and b were obtained in 15 and 13% yields, respectively, by intermolecular [2 + 2] photocycloaddition. The conformations of 4a and b are assigned to be 1,2-alternate form and cone one, respectively. The calix[4]arenes 5a and b having hydroxy groups were also obtained in 84 and 80% yields, respectively, by ether cleavage of 4, whose conformations are maintained by this transformation.

calixarene - photocycloaddition - cone conformer - alternate conformer