Experimental Comparative Study of Dynamic Behavior in Solution Phase of
C-Tetra(phenyl)resorcin[4]arene and
C-Tetra(phenyl)pyrogallol[4]arene.
Molecules 2020;
25:molecules25102275. [PMID:
32408559 PMCID:
PMC7287697 DOI:
10.3390/molecules25102275]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/25/2020] [Accepted: 05/08/2020] [Indexed: 11/24/2022] Open
Abstract
The synthesis of phenyl-resorcinarenes and pyrogallolarenes is known to produce a conformational mixture of cone and chair isomers. Depending on the synthesis conditions the composition of the conformational mixture is variable; however, the cone conformer is the greatest proportion of phenyl-resorcin[4]arenes and chair conformer of pyrogallol[4]arenes. The experimental evidence suggests that phenyl-substituted resorcinarene and pyrogallolarene exist as a dynamic boat in solution.
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