Selective Cation Binding Research Articles

ChemInform Abstract: Molecular Design of Crown Ethers. Part 4. Syntheses and Selective Cation Binding of 16‐Crown‐5 and 19‐Crown‐6 Lariats (I).

ChemInform Abstract: Molecular Design of Crown Ethers. Part 4. Syntheses and Selective Cation Binding of 16‐Crown‐5 and 19‐Crown‐6 Lariats (I).

Molecular design of crown ethers. 4. Syntheses and selective cation binding of 16-crown-5 and 19-crown-6 lariats

Les pouvoirs d'extraction des ethers lariat 16-crown-5 pour les cations mono- et divalents augmentent avec la longueur du bras oxyethylene lateral

Complexes of a “mono-p-donor crown ether” hybrid ligand with potential for the activation of a coordinated carbon monoxide via selective cation binding

Derivatives of 1,10-dioxa-4,7-diaza-11-phosphacycloundecane are known to function as mono-P-donor crown ether ligands. When complexed to molybdenum or tungsten in the form of M(CO) 5P derivatives they provide an additional incentive for nucleophilic attack (RLi reagents) at the C-atom of a coordinated CO via selective Li + ion binding by the benzoylate/acylate product. The structure of one of these products, ci-[ OCH 2CH 2N(Me)CH 2CH 2N(Me)CH 2CH 2O)P (OEt)] — −Mo(CO) 4(PhCO)→Li +, has been determined by X-ray crystallography.