In an article, author is Zou, Liangliang, once mentioned the application of 94-93-9, Name is 2,2′-((Ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))diphenol, molecular formula is C16H16N2O2, molecular weight is 268.31, MDL number is MFCD00002244, category is chiral-catalyst. Now introduce a scientific discovery about this category, SDS of cas: 94-93-9.
An efficient enantioselective synthesis of cyclic alpha-aminophosphonates via multicomponent reactions of 2-alkynylbenzaldehydes, amines, and dimethylphosphonate has been developed with the use of a chiral silver spirocyclic phosphate as the catalyst. This protocol provides straightforward access to a series of chiral C1-phosphonylated 1,2-dihydroisoquinoline derivatives with high yields (up to 99%) and high enantioselectivities (up to 94% ee) for a broad substrate scope. The products could be further transformed into densely functionalized compounds and corresponding alpha-aminophosphonic acids.
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Reference:
Chiral Catalysts,
,Chiral catalysts – SlideShare