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
The mixture of N, N’-Dimethylene diamine 21-1 (5 mL, 46.5 mmol) and tert-butyl acrylate 13 mL (116 mmol) was heated at 85 C for 1 hour. Another 13 mL (116 mmol) of tert- butyl acrylate was added. The reaction mixture was continuely heated at 85C for 1 hour and stirred at room temperature overnight. The reaction mixture was concentrated in vacuo. The residue wasdiluted with hexanes and purified by flash column chromatography using SiliaSep Cartridges (120g), eluting with 0-5% methanol/DCM to give 10.1 g (62%) of compound 21-2. MS (ESI) m/z 345 [M+H].
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Reference£º
Patent; AMBRX, INC.; MIAO, Zhenwei; ATKINSON, Kyle, C.; BIROC, Sandra; BUSS, Timothy; COOK, Melissa; KRAYNOV, Vadim; MARSDEN, Robin; PINKSTAFF, Jason; SKIDMORE, Lillian; SUN, Ying; SZYDLIK, Angieszka; VALENTA, Ianina; WO2012/166560; (2012); A1;,
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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