Reference of 37366-09-9. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 37366-09-9, Name is Dichloro(benzene)ruthenium(II) dimer. In a document type is Article, introducing its new discovery.
Carbohydrate ligands have been studied in transition-metal-catalyzed 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-alpha-D-hexopyranosides and their application as catalyst precursors in asymmetric hydrogenation reactions. Depending on the hexopyranose, an enantiomeric excess of up to 78 % was obtained. The Noyori-type hydrogenation catalyst precursor is modified with methyl 2,3-diamino-4,6-O-benzylidene-2,3-dideoxy-alpha-D-hexopyranoside ligands (glucose, mannose, gulose, and talose). The trans-dichloridoruthenium(II) complexes are diastereoselectively formed. Enantiomeric excesses of up to 78 % are obtained in enantioselective hydrogenation reactions under normal hydrogen pressure.
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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI