Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn¡¯t involve a screen. 4488-22-6, C20H16N2. A document type is Patent, introducing its new discovery., Recommanded Product: [1,1′-Binaphthalene]-2,2′-diamine
Process for producing an optically active ruthenium-phosphine complex and process for producing an optically active alcohol by using the complex
Provided is a process for preparing an optically active ruthenium-phosphine complex represented by the following formula (1): 1wherein L represents a bidentate ligand compound of a tertiary phosphine; X represents a halogen atom; and * means chiral center (L* is an optically active substance), which comprises reacting a ruthenium-phosphine complex represented by: RumXnLpAq or [RuX(D)(L)]Xwherein, X and L have the same meanings as described above (L is a racemic modification); A represents triethylamine (Et3N), etc.; and m, n, p and q each stands for an integer and D represents benzene, etc. with ? equivalent of a specific optically active chiral diamine, thereby inactivating one of the enantiomers; and then with a specific optically active diamine derivative, thereby activating the other enantiomer.
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Reference£º
Chiral Catalysts,
Chiral catalysts – SlideShare