The molecularity of an elementary reaction is the number of molecules that collide during that step in the mechanism. 33527-91-2, If there is only a single reactant molecule in an elementary reaction, that step is designated as unimolecular. 33527-91-2, name is Tris[2-(dimethylamino)ethyl]amine. A new synthetic method of this compound is introduced below.
To a solution of tris(2-dimethylaminoethyl)amine (0.426 g, 1.85mmol) in acetonitrile (4 mL) was added 1-bromodecane (1.27 g, 5.73 mmol). Theresulting mixture was heated at reflux with stirring for 18 hours. After cooling, and the addition of hexanes (5 mL), a white solid precipitated, which was filtered with a Buchner funnel, transferring with a cold hexanes/acetone mixture (15 mL, 1:1). The solid was rinsed with a cold hexanes/acetone mixture (2O mL, 1:1), resulting in T10 10,10,10 (1.16 g, 70%) as a white powder; mp=223-248 C; ?H NMR (300 MHz,CDC13) oe 4.11-4.02 (m, 6H), 3.62-3.53 (m, 6H), 3.41-3.27 (m, 24H), 1.72-1.62 (m, 6H), 1.38-1.14 (m, 42H), 0.85-0.78 (m, 9H); ?3C NMR (75 MHz, CD3OD) oe 65.4,61.1, 50.2, 46.9, 31.6, 29.2, 29.0, 28.9, 26.1, 22.4, 22.3, 13.0; high resolution mass spectrum (ESI) m/z 217.9095 ([Mj3 calculated for [C42H93N4j3: 217.9128). See alsoYoshimura et al., 2012, Langmuir 28:9322-9331. ?H and ?3C NMR spectra of compound T-10,10,10 can be found in Figure 50.
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Reference£º
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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