The condensation reaction between p‐tert‐butylphenol and formaldehyde leads in a single
step to good yields of cyclic oligomers in which, depending on the reaction conditions, either …

A wide variety of macrocyclic ligands able to interact with cations, anions, and neutral
species are known. These have been isolated from natural resources or are the result of the …

Durch Kondensation von p‐tert‐Butylphenol mit Formaldehyd sind in einem Schritt in guten
Ausbeuten cyclische Oligomere erhältlich, in denen je nach Reaktionsbedingungen vier …

Thermodynamics of 5, 17 bis (dihydroxyphosphorylhydroxymethyl)-25, 27-dipropoxy-
calixarene in pure Racemic form and 1: 1 mixture of the Meso and Racemic forms (host …

The p K a values for calixarenes in MeCN have been determined by selective titration with
bases using a spectroscopic method. These values are as follows: calix [4] arene p K a (1) …

The mono-potassium salts obtained by the action of K2CO3 on calix [4] arene and p-tert-
butylcalix [4] arene are found to possess very similar solid-state dimer structures that differ …

Synthesis of new chromogenic calix [4] arenes through the coupling of diazotized 4, 4 '-
diaminobiphenyls and calix [4] arenes at the upper rim is described. Analysis of the …

In weakly polar solvents, strong association occurs between calixarene anions and
tetraalkylammonium cations, with the magnitude of the observed equilibrium constants …

Partition and distribution constants of alkali-metal (lithium, sodium, potassium, rubidium)
picrates in the water–benzonitrile solvent system and ion-pair formation constants for these …

The complexation of acetonitrile and nitromethane by the calix [4] biscrowns 1, 2, 3 and the
upper rim pyridine brigded calix [4] arene 4, all fixed in a C4 v structure, was studied by 1H …