Author/Authors :
Knyazeva، نويسنده , , Irina R. and Sokolova، نويسنده , , Victoria I. and Gruner، نويسنده , , Margit and Habicher، نويسنده , , Wolf D. and Syakaev، نويسنده , , Victor V. and Khrizanforova، نويسنده , , Vera V. and Gabidullin، نويسنده , , Bulat M. and Gubaidullin، نويسنده , , Aidar T. and Budnikova، نويسنده , , Yulia H. and Burilov، نويسنده , , Alexander R. and Pudovik، نويسنده , , Micha، نويسنده ,
Abstract :
Novel calix[4]resorcinols with four 2-thioxo-1,3,2-dioxaphosphorinane fragments included in aromatic substituents have been synthesized via a one-step condensation of resorcinol and its derivatives with a new para-thiophosphorylated benzaldehyde. It has been found that the diastereomeric ratio depends substantially on the reaction conditions, in particular, the solvents and catalysts used. The macrocyclic products obtained are rctt- and/or rccc-isomers, which were isolated and the structures determined by NMR and single crystal X-ray diffraction studies.
Keywords :
Condensation , aldehyde , Resorcinol , Conformation
