Complexation of Small Molecules by Open-Ended Resorcarene Hosts
摘要:
[GRAPHICS]Sterically hindered tetraaminomethylated resorcarenes form inclusion complexes in CDCl3 With acetonitrile and acetaldehyde, which are kinetically stable on the NMR time scale at 233 K.
Reaction of resorcinarene octols with tris-hydroxymethylmethylamine (TRIS), formaldehyde, and alcohols results in tetraalkoxymethylation of the resorcinol rings. Harsh acylation of aminomethylated resorcinarenes with acid anhydrides leads to the complete acylation of eight hydroxyls and substitution of the amino versus acyloxy groups. Acyloxymethylated resorcinarene 6b can be transformed into a tetrabromomethylated
作者:A. R. Burilov、D. I. Kharitonov、N. I. Bashmakova、T. B. Makeeva、I. L. Nikolaeva、M. A. Pudovik、A. I. Konovalov
DOI:10.1023/a:1026300817910
日期:——
A series of aminophosphino cavitands were synthesized by reactions of dialkylaminomethyl-substituted calix[4]resorcinolarenes with hexaalkylphosphorous triamides, and their properties were studied. New aminoalkylated (thio)phosphato(phosphonato) cavitands were prepared by phosphorylation of dialkylaminomethyl-substituted calix[4]resorcinolarenes with phosphorus(V) dichlorides in the presence of a base. Their reactions with electrophilic alkylating agents (methyl trifluoromethanesulfonate, methyl iodide, and triethyloxonium tetrafluoroborate) were examined.
Synthesis and antioxidant activity of 3,5-di-tert-butyl-4-hydroxyphenylthiomethyltetraalkylcalix[4]resorcinarenes
作者:G. N. Nugumanova、T. A. Barsukov、S. V. Bukharov、V. V. Syakaev、R. Ya. Deberdeev
DOI:10.1134/s107036321509011x
日期:2015.9
Deamination of dimethyl- and diethylaminomethylated tetraalkylcalix[4]resorcinarenes with 3,5-di-tert-butyl-4-hydroxyphenylmercaptan afforded new 3,5-di-tert-butyl-4-hydroxyphenylthiomethyltetraalkylcalix-[4]resorcinarenes. High antioxidant activity of the synthesized alkylcalix[4]resorcinarenes was established in the model reaction of initiated oxidation of styrene.