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Catalytic Hydrolysis of Phosphate Diester with Metal Complexes of Macrocyclic Tetraamine in Comicellar Solution
Author(s) -
Xiang QingXiang,
Yu XiaoQi,
You JingSong,
Yan QianShun,
Xie RnGang
Publication year - 2001
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.20010190208
Subject(s) - chemistry , hydrolysis , aqueous solution , phosphate , catalysis , pyridine , benzene , metal , inorganic chemistry , metal ions in aqueous solution , substrate (aquarium) , polymer chemistry , ring (chemistry) , organic chemistry , oceanography , geology
Four novel pyridine or benzene ring‐containing pendant macrocyclic dioxotetraamines 2,6‐dixo‐l,4,7,10‐tetraazacyclododecane ligands have been synthesized. Their metal complexes have been investigated as catalysts for the hydrolysis of bis( p ‐nitrophenyl) phosphate (BNPP) in aqueous comicellar solution. The results indicate mat the hydrophobic interaction between substrate and metal complex, the nature of transition metal ion, and the micellar microenvironment are important factors for the hydrolysis of BNPP. Large rate enhancement (up to over two‐three orders of magnitude) employing 5 has been observed.