Thermal analysis of calix[4]resorcinarene complexes with secondary and tertiary amines

Chemistry of calix[4]resorcinarenes

“…Tetrakis(C-undecyl)calix [4]resorcinarene 22c forms a 1 : 4 host ± guest complexes with dioxane 233 and Nile Blue (78), 234 but forms solid complexes with secondary and tertiary amines [morpholine, piperidine, 2,6-dimethylmorpholine, Pr i 2 NH, Et 3 N, (cyclo-C 6 H 11 ) 2 NH] from dioxane solutions by crystallization. 235 Host ± guest interactions of C-methylresorcin [4]arene 56b and its derivative 79, which have been appended with four tert-butylsulfanylmethyl groups at the extra-annular positions, have been studied and it has been determined that bulky substituents create a deep cavity with a narrow entrance that improves size and shape selectivity. 236 Host ± guest complexes that have been obtained by cocrystallizing C-methylresorcin [4]arene with 1,10-phenanthroline, coumarin or thiocoumarin from polar solvents were studied using single crystal X-ray diffraction techniques.…”

The synthesis and characterization of azocalix[4]arene based chemosensors and investigation of their properties

“…As reported in [21][22][23], secondary and tertiary amine complexes of calixresorcinarenes are formed in a solution with a complementary fit with the calix cavity size. Calixresorcinarene forms complexes with amines with a stoichiometry ratio of 1:2 in the solid-state.…”

Synthesis and <i>In Vitro</i> Evaluation of C-methylcalix[4]resorcinaryl octacinnamate and C-methylcalix[4]resorcinaryl octabenzoate as the Sunscreen

“…The compounds are easily synthesized by well-established one-pot procedures [9]. They have found much application of Calix [4]resorcinarenes such as macrocyclic receptor [11], host molecules [12][13][14], dying fiber [10], building blocks for even larger supramolecular architectures assemblies such as cages, capsule and as starting materials for the preparation of more sophisticated molecules [15]. Unfortunately, the study of calix [4]resorcinarene as the ultraviolet light absorbers has attracted very little attention.…”