In an article, author is Carceller-Ferrer, Laura, once mentioned the application of 96-47-9, Name is 2-Methyltetrahydrofuran, molecular formula is C5H10O, molecular weight is 86.1323, MDL number is MFCD00005367, category is chiral-nitrogen-ligands. Now introduce a scientific discovery about this category, Formula: C5H10O.
Organocatalytic Enantioselective Aminoalkylation of 5-Aminopyrazole Derivatives with Cyclic Imines
In this communication, an efficient asymmetric aminoalkylation of 5-aminopyrazole derivatives with cyclic benzoxathiazine 2,2-dioxides catalyzed by a quinine-derived squaramide in dichloromethane has been established. This is the first example of 5-aminopyrazole derivatives in asymmetric catalysis. A variety of chiral sulfamidates bearing an aminopyrazole moiety were obtained in good yields (up to 98 %) and moderate to excellent enantioselectivities (up to 99 %ee).
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Reference:
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations,
,Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis