Name is N1,N2-Dimethylethane-1,2-diamine, as a common heterocyclic compound, it belongs to chiral-nitrogen-ligands compound, and cas is 110-70-3, its synthesis route is as follows.
HL1 was prepared by a modification of a method previouslyreported [23] and characterised by 1H NMR spectroscopy. Theligand was obtained as follows: to a solution of 2-hydroxybenzaldehyde(6.10 mL, 82.95 mmol) in absolute ethanol (250 mL),N,N’-dimethylethylenediamine (13.1 g, 100 mmol) and MgSO4were added. The suspension was stirred at room temperature for16 h and then filtered. The filtrate was concentrated under pressureto yield a yellow liquid, which was purified by distillation ina glass oven. Yield: 14.03 g (88%), b.p.: 145 C. 1H NMR (300 Hz,CDCl3) d: 11.52 (s, 1H, OH); 7.21 (td, J = 8.1 and 1.8 Hz, 1H, H6);6.97 (dd, J = 7.5 and 1.8 Hz, 1H, H4); 6.84 (dd, J = 8.4 and 1.2 Hz,1H, H7); 6.77 (td, J = 7.5 and 1.2 Hz, 1H, H5); 3.42 (s, 1H, H2);3.40 (m, 2H, 2H1); 2.59-2.53 (m, 2H, 2H1); 2.28 (s, 6H, 6H9) ppm.
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Reference£º
Article; Fondo, Matilde; Doejo, Jesus; Garcia-Deibe, Ana M.; Sanmartin, Jesus; Gonzalez-Bello, Concepcion; Vicente, Ramon; Polyhedron; vol. 100; (2015); p. 49 – 58;,
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