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1. The inherent structural instability: concentration-dependent transformation of pyrogallarene to pyrogallarene lactonesElectronic supplementary information (ESI) available: Experimental details, additional MS, NMR, IR DFT data. See DOI: 10.1039/c0cc05280a.

Author

Elina Kalenius, N. Kodiah Beyeh, Janne Jänis, and Kari Rissanen

Subjects
*PHENOLS, *LACTONES, *EXPERIMENTAL design, *NUCLEAR magnetic resonance spectroscopy, *KETENES, *RING formation (Chemistry), *CALIXARENES
Abstract

Pyrogallarene shows concentration-dependent instability in dilute solutions resulting in elimination of two ketene molecules and formation of pyrogallarene lactones. This unexpected phenomenon, which is not observed with resorcinarenes, highlights the significance of the four hydroxyl groups at 2-position for the molecular characteristics of pyrogallarenes. [ABSTRACT FROM AUTHOR]

Published
2011
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