Synthetic Route of 21436-03-3. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 21436-03-3, Name is (1S,2S)-Cyclohexane-1,2-diamine. In a document type is Article, introducing its new discovery.
Two new chiral ligands (S, S, S, S)-N, N’-bis(2-p-toluene- sulfonylaminocyclohexyl) ethylenediamine (2a) and (S, S, S, S)-N, N’-bis(2-p-toluenesulfonylaminocyclohexyl) trimethylenediamine (2b) were prepared and confirmed by means of elemental analysis, IR, 1H NMR, and MS. The catalytic effect for asymmetric transfer hydrogenation of acetophenone has been investigated using [Ru(p-cymene)Cl2] 2 and above C2-symmetric chiral tetraaza ligands in 2-propanol/KOH. The chiral 1-phenylethanol was obtained with good conversion (87-98%) and low enantiometric excess (4-27%). Copyright Taylor & Francis Group, LLC.
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