Single step preparation and conformational analysis of novel thiophosphorylated ligands based on calix[4]resorcinol matrix

Oxygen reduction reaction catalyzed by nickel complexes based on thiophosphorylated calix[4]resorcinols and immobilized in the membrane electrode assembly of fuel cells

“…7 The chemistry of heteroatom-containing, in particular, phosphorus-containing, macrocyclic compounds including calixarenes has undergone rapid development; this is primarily related to the search for new and effective ligands for various applications in science and engineering. 8,9 It was reported 8 that 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.…”