63137-37-1Relevant articles and documents
Synthesis of phosphonosulfonic acid building blocks as linkers for coordination polymers
Beyer,Homburg,Albat,Stock,Lüning
supporting information, p. 8870 - 8876 (2017/08/29)
Ten aromatic building blocks (8-11, 23-28) containing phosphonic and sulfonic acid groups within one molecule were synthesized. Twofold nucleophilic substitution starting from 1,2,4,5-tetrakis(bromomethyl)benzene (1) followed by hydrolysis gave building blocks 8-11. To obtain building blocks 23-28, the respective bromobenzenesulfonic acids 13, 16, 18-20 and 22 had to be synthesized first. Palladium-catalysed cross coupling with triethylphosphite followed by hydrolysis gave the desired building blocks with phosphonic and sulfonic acid groups. Building block 9 was successfully used as a linker for the synthesis of a new La-based CP with the composition [La2(H2L)1.5(H2O)4].
