The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. 110-70-3, If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular. 110-70-3, name is N1,N2-Dimethylethane-1,2-diamine. A new synthetic method of this compound is introduced below.
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
Nitrogen-Containing Ligands for Asymmetric Homogeneous and Heterogeneous Catalysis