ChemInform Abstract: STUDY OF TRIHALODIETHYLENETRIAMINE COMPLEXES OF IRIDIUM

Baranovskii, I. B.; Sevast'yanova, R. E.; Mazo, G. Ya.

doi:10.1002/chin.197819270

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2015

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“…In our studies to develop enantioselective catalysts based on chiral monosaccharides, we decided to synthesize late transition metal complexes with methyl 2,3‐diamino‐2,3‐dideoxyhexopyranoside ligands 7. The coordination properties of the 2,3‐diamino function very much resemble those of the achiral ethylenediamine (en) ligand and chiral 1,2‐diaminocyclohexane derivatives,7b which form stable complexes with the late transition metal ions Ru II ,8a Rh III ,8b–8e and Ir III[8e–8h] and are active in catalytic reactions 8i–8k…”

Section: Introductionmentioning

confidence: 99%

Catalytic Diamino‐Sugar‐Assisted Enantioselective Hydrogenation

Böge¹,

Heck²

2015

Eur J Inorg Chem

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Keywords: Carbohydrates / Hydrogenation / N ligands / Asymmetric catalysis / RutheniumCarbohydrate ligands have been studied in transition-metalcatalyzed hydrogenations in recent decades. Herein, we report the diastereoselective synthesis of trans-dichlorido(bisphosphane)ruthenium(II) complexes with four different methyl 2,3-diamino-4,6-O-benzylidene-2,3-dideoxy-α-D-[a] Institute 2858 hexopyranosides and their application as catalyst precursors in asymmetric hydrogenation reactions. Depending on the hexopyranose, an enantiomeric excess of up to 78 % was obtained.Scheme 1. Synthesis of 5-13. [9,10a] Eur.

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