Synthesis of phosphonosulfonic acid building blocks as linkers for coordination polymers?
New Journal of Chemistry Pub Date: 2017-07-13 DOI: 10.1039/C7NJ01697B
Abstract
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].
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Journal Name：New Journal of Chemistry
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CAS no.: 89640-58-4
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