106942-87-4Relevant academic research and scientific papers
4H-Pyran and Pyrylium Hemispherands: Partly Preorganized Ionophores with Reactive Molecular Cavities
Dijkstra, Pieter J.,Hertog, Herman J. den,Eerden, Johan van,Harkema, Sybolt,Reinhoudt, David N.
, p. 374 - 382 (2007/10/02)
The synthesis and reactivity of a 2,6-diaryl-substituted pyrylium cation incorporated in an 18-membered macrocycle (3a,b) has been studied.Hemispherands with a central pyridine (4a,b) and with alkyl- or phenyl-substituted pyridinium ions (5a,b) were obtai
THE SYNTHESIS OF 4H-PYRAN CONTAINING HEMISPHERANDS VIA PYRYLIUM SALTS
Dijkstra, P. J.,Steen, B. J. van,Hams, B. H. M.,Hertog, H. J. den,Reinhoudt, D. N.
, p. 3183 - 3186 (2007/10/02)
Two new hemispherands 2a and 2b containing a central 4H-pyran unit were synthesized via appropiately substituted 2,6-phenyl pyrylium salts; largest ΔG0 values of complexation of 2a and 2b with different alkali picrates are found for Na(+) and K(+).
