Synthesis of a new ortho-tert-butylphenol-based calix[4]arene
1995; Elsevier BV; Volume: 36; Issue: 13 Linguagem: Inglês
10.1016/0040-4039(95)00242-5
ISSN1873-3581
AutoresGiovanni Sartori, Franca Bigi, Cecilia Porta, Raimondo Maggi, Raffaella Mora,
Tópico(s)Chemical Synthesis and Analysis
ResumoThe ortho-tert-butylphenol derived calix[4]arene 5 with the OH groups arranged in a extra-annular fashion is synthesized by condensation of 2,2′-dihydroxy-3,3′-di-tert-butyldiphenylmethane4 with formaldehyde under BF3Et2O catalysis. The crucial role of tert-butyl groups in promoting the macrocyclization process is emphasized.
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