Pujo-Bouteille, Anne published the artcileNew podands and macrocycles containing “dioxazaphosphocane” moieties. Synthesis, structural determination and study of their binding and ionophoric properties with Ca2+ and Mg2+ cations, Synthetic Route of 5411-14-3, the publication is Tetrahedron (1998), 54(15), 3817-3826, database is CAplus.
The reactions of diacids with the bicyclophosphane lead to podands I (R = 1,3-C6H4, 1,3-C6H4CH2, 4-C6H4OC6H4-4, CH2CH2OCH2CH2, CH2CH2OCH2CH2OCH2CH2, 1,2-CH2CH2OC6H4OCH2CH2) in which two dioxazaphosphocane moieties are linked by a more or less rigid spacer owing to the starting diacid. Macrocycles are obtained by cyclization of podands I (R = 1,3-C6H4, 1,3-C6H4CH2) by way of Michaelis-Becker reaction. The formation of Ca2+ and Mg2+ complexes with I and ring cyclized products has been investigated by UV, IR and NMR spectroscopies. Liquid-liquid extraction studies show for macrocycles efficient extracting properties and good selectivities of Ca2+ towards Mg2+. The calcium transport across a chloroformic membrane agrees better with stability constants than with extraction data.
Tetrahedron published new progress about 5411-14-3. 5411-14-3 belongs to catalysis-chemistry, auxiliary class Carboxylic acid,Benzene,Ether, name is 2,2-(1,2-Phenylenebis(oxy))diacetic acid, and the molecular formula is C10H10O6, Synthetic Route of 5411-14-3.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia