© 2017, Pleiades Publishing, Ltd. A series of cone and 1,3-alternate p-tert-butylthiacalix[4]arenes tetrasubstituted at the lower rim simultaneously by the amide, ester, and carboxyl functions were synthesized. The reactivity ...

© 2018, Pleiades Publishing, Ltd. The steric structure of the cone and 1,3-alternate stereoisomers of p-tert-butylthiacalix[4]arenes bearing in the lower rim four substituents containing amide and ammonium groups as well ...

© 2017, Pleiades Publishing, Ltd. The reactions of phosphorus(III) chloride and 2-chloro-1,3,2-dioxaphospholane with monohydroxypillar[5]arene afforded for the first time the corresponding PH-phosphonates. It was found ...