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Synfacts 2008(4): 0369-0369
DOI: 10.1055/s-2008-1042844
DOI: 10.1055/s-2008-1042844
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York
Topological Polymerization on Calixarene Template
C. Lim, D. J. Sandman, M. Sukwattanasinitt*
Chulalongkorn University, Bangkok, Thailand and University of Massachusetts, Lowell, USA
Weitere Informationen
Publikationsverlauf
Publikationsdatum:
19. März 2008 (online)
Significance
The authors report a synthesis of tert-butylcalix[4]arenes with pendant diynyl groups (1). When 1 was exposed to UV radiation, no significant transformation took place. When hydroxyl groups were converted into urethanes (2 and 3), the compound exhibited color change from white to intense red upon a five-minute exposure to UV radiation. The authors exposed 2 to γ-radiation in order to achieve a more thorough transformation of the solid material. The resulting solid material was shown to have spectroscopic properties which suggest the presence of ene-yne conjugation of the expected product, 4.