Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 3896-11-5, Name is 2-(tert-Butyl)-6-(5-chloro-2H-benzo[d][1,2,3]triazol-2-yl)-4-methylphenol, SMILES is CC1=CC(=C(O)C(=C1)N1N=C2C=CC(Cl)=CC2=N1)C(C)(C)C, in an article , author is Feng, Guoqiang, once mentioned of 3896-11-5, Category: chiral-nitrogen-ligands.
Resolution of chiral nitrogen atoms in 1D helical coordination polymers
A unique stereochemically labile secondary amine with a chiral nitrogen atom assemble cobalt and zinc ions in the aid of chelating ancillary ligands to give rise to three helical 1D coordination polymers, [Co(p-cpdba)(2,2′-bpy)](n) (1), {[Zn(p-cpdba)(2,2′-bPY)]}(n) (2) and [Zn(p-cpdba)(1,10-phen)](n) (3) (cpdba(2-) = 4-(4-carboxyphenylamino)-3,5-dinitrobenzolate, 2,2′-bpy = 2,2′-bipyridine, 1,10-phen = 1,10-phenanthroline). Compound 1 exhibits a racemic double-stranded chained structure with chelating 1,10-phen occupying two sites of the octahedral cobalt(11). By changing to five-coordinated square pyramidal zinc(II) and employing 2,2′-bpy and 1,10-phen, two triple-stranded chained compounds 2 and 3 are synthesized. As expected, all chiral nitrogen atoms within each chiral chain of every triple-stranded helix in 2 and 3 have the same absolute configuration due to the confining growth along one dimension. Therefore, the resolution of chiral nitrogen atom is achieved though only at a one-dimensional scale.
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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
,Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis