10.1021/acs.inorgchem.6b02589.s001
Xiu-Ying Zheng
Xiu-Ying
Zheng
Jun-Bo Peng
Jun-Bo
Peng
M. M. Varuni S. Livera
M. M. Varuni S.
Livera
Yun Luo
Yun
Luo
Ya-Yun Wang
Ya-Yun
Wang
Xiang-Jian Kong
Xiang-Jian
Kong
La-Sheng Long
La-Sheng
Long
Zhiping Zheng
Zhiping
Zheng
Lan-Sun Zheng
Lan-Sun
Zheng
Selective Formation of Chromogen I from <i>N</i>‑Acetyl‑d‑glucosamine upon Lanthanide
Coordination
American Chemical Society
2016
nanostructured 54- metal cagelike assembly
nonanuclear lanthanide complexes
hex -2-enofuranose
OH
Free Chromogen
deprotonated chiral ligand Chromogen
H 2 O
Selective Formation
solution stability
dehydrating GlcNAc
Ln
cluster
LH
Lanthanide Coordination
Mass spectroscopic studies
2016-12-09 21:29:36
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Selective_Formation_of_Chromogen_I_from_i_N_i_Acetyl_d_glucosamine_upon_Lanthanide_Coordination/4307708
We report two nonanuclear
lanthanide complexes, [Ln<sub>9</sub>(μ<sub>4</sub>-O)(μ<sub>3</sub>-OH)<sub>8</sub>(LH)<sub>4</sub>(OAc)<sub>4</sub>(H<sub>2</sub>O)<sub>12</sub>]·5ClO<sub>4</sub>·24H<sub>2</sub>O (Ln
= Gd, <b>1</b>; Dy, <b>2</b>), where LH<sup>2–</sup> is the doubly deprotonated chiral ligand Chromogen I (2-acetamido-2,3-dideoxy-D-<i>erythro</i>-hex-2-enofuranose), one of the many
products from the dehydration of <i>N</i>-acetyl-D-glucosamine (GlcNAc). Mass spectroscopic studies established the
solution stability of these clusters. Through hydrogen bonding, the
cluster complex self-organizes into a nanostructured 54-metal cagelike
assembly featuring six of its units occupying the vertices of an octahedron.
Free Chromogen I can be obtained in pure form and high yield by a
straightforward workup of the cluster complex. This is the first report
of dehydrating GlcNAc without the need of a catalyst or forcing conditions.