N-Glycosylamines of 4,6-O-ethylidene-α-D-glucopyranose: synthesis, characterisation and structure of CO2H, Cl and F ortho-substituted phenyl derivatives and metal ion complexes of the CO2H derivative†
作者:Ajay K. Sah、Chebrolu P. Rao、Pauli K. Saarenketo、Elina K. Wegelius、Kari Rissanen、Erkki Kolehmainen
DOI:10.1039/b004854m
日期:——
A saccharide based ligand suitable for metal binding (HLCOOH) has been synthesized using 4,6-O-ethylidene-α-D-glucopyranose (4,6-O-EGP) and anthranilic acid. A few analogous glycosylamines with chloro and fluoro ortho substitutions have also been synthesized and characterised. Complexes of HLCOOH with Na+, K+, Mg2+, Ca2+, Ba2+, Cd2+ and Hg2+ have been isolated and characterised fully. The crystal structures of 4,6-O-EGP, the chloro analogue of HLCOOH and the K+ complex of LCOOH are established. The anomeric nature, orientation of the binding core and the co-ordination aspects of K+ have been derived from these structures.
利用 4,6-O-亚乙基-δ-D-吡喃葡萄糖(4,6-O-EGP)和蚁酸合成了一种适用于金属结合的糖基配体(HLCOOH)。此外,还合成了一些具有氯和氟正交取代的类似糖基胺,并对其进行了表征。已分离出 HLCOOH 与 Na+、K+、Mg2+、Ca2+、Ba2+、Cd2+ 和 Hg2+ 的络合物,并对其进行了全面表征。建立了 4,6-O-EGP、HLCOOH 的氯类似物和 LCOOH 的 K+复合物的晶体结构。从这些结构中得出了 K+ 的同分异构性质、结合核的取向和配位方面。