Rate laws may be derived directly from the chemical equations for elementary reactions. This is not the case, however, for ordinary chemical reactions.110-70-3, name is N1,N2-Dimethylethane-1,2-diamine, below Introduce a new synthetic route. , 110-70-3
a 1,3-Dimethyl-2-(2-thienyl)-imidazolidine 23.5 g (267 mmol) of N,N’-dimethylethylenediamine were dissolved in 300 ml of toluene and treated with 29.8 g (266 mmol) of thiophene-2-carbaldehyde. The clear mixture was refluxed for 4 hours using a Dean-Stark trap. After that time 4.9 ml of water had separated in the trap. After cooling, the solution was filtered and evaporated. The oily residue was destined in vacuo. Yield: 45 g. Boiling point: 65 C. (0.1 mm Hg).
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Reference£º
Patent; Aventis Pharma Deutschland GmbH; Genentech, Inc.; US6566366; (2003); B1;,
Chiral nitrogen ligands in late transition metal-catalysed asymmetric synthesis¡ªI. Addressing the problem of ligand lability in rhodium-catalysed hydrosilations
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