The reactivity of calyx[4]resorcinolarene anions towards p-nitrophenyl esters of tetracoordinated phosphorus acids

The results of a kinetic study have shown that the reactivity of monomeric forms of amphiphilic tetra- ([H 4L] 4–) and octa- ([L] 8–) anions of calyx[4]resorcinolarenes (H 8L) towards p-nitrophenyl esters of tetracoordinated phosphorus acids in aqueous dimethylformamide (50 vol.% of DMF) is determin...

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Published in:Mendeleev communications 1997, Vol.7 (3), p.88-89
Main Authors: Ryzhkina, Irina S., Kudryavtseva, Lyudmila A., Kazakova, Ella Kh, Burilov, Alexander R., Konovalov, Alexander I.
Format: Article
Language:English
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Summary:The results of a kinetic study have shown that the reactivity of monomeric forms of amphiphilic tetra- ([H 4L] 4–) and octa- ([L] 8–) anions of calyx[4]resorcinolarenes (H 8L) towards p-nitrophenyl esters of tetracoordinated phosphorus acids in aqueous dimethylformamide (50 vol.% of DMF) is determined by the nucleophilic centres of the anions, whereas an increase in the concentration of H 8L inhibits the process, which is due to the formation of aggregates.
ISSN:0959-9436
DOI:10.1070/MC1997v007n03ABEH000713