One of the major reasons is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time, to discover the sequence of events that occur at the molecular level.110-70-3, N1,N2-Dimethylethane-1,2-diamine, introduce a new downstream synthesis route. 110-70-3
To an ice-cooled solution of N,N’-dimethyethylenediamine (10 mL, 91.0 mmol) in dry THF (150 mL) was added a solution of Boc2O (4.97 g, 22.8 mmol) in dry THF (50 mL) over 30 minutes. The reaction mixture was stirred for 1 h at 0 C. then at rt overnight, and concentrated in vacuo. The resulting residue was taken up in a mixture of EA and a sat. NH4Cl solution. The organic layer was separated, washed with brine, dried (MgSO4), filtered and concentrated under reduced pressure. FC (10% MeOH in DCM) afforded the title compound as a yellow oil (2.90 g, 17%).LC-MS (analytic A, Zorbax SB-AQ column, acidic conditions): tR=0.50 min; [M+H]+=189.40.
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Reference£º
Patent; Aissaoui, Hamed; Boss, Christoph; Corminboeuf, Olivier; Frantz, Marie-Celine; Grisostomi, Corinna; US2011/224210; (2011); A1;,
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