Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 870-24-6, name is 2-Chloroethanamine hydrochloride, A new synthetic method of this compound is introduced below., name: 2-Chloroethanamine hydrochloride
In a first reaction step, 3-chloroethylamine hydrochloride (73.86 g, 0.70 mol, 1.00 eq) is initially charged in ethanol (3.0 l) in a 4 l three-neck flask with precision glass stirrer, internal thermometer, dropping funnel and reflux condenser, and cooled to -78 C., and sodium ethoxide (226.83 g, 0.70 mol, 1.00 eq, 21% in ethanol) is added. 3-Isocyanatopropyl(triethoxysilane) (173.15 g, 0.70 mol, 1.00 eq) is then added dropwise at -78 to -70 C. within 3 h and then the mixture is heated to 50 C. Dry sodium sulphide (Na2S, 27.31 g, 0.35 mol, 0.50 eq) is added in five portions and the mixture is heated to reflux. After a reaction time of 4 h, the mixture is cooled to room temperature and the suspension is filtered. The filtrate is freed of the solvent on a rotary evaporator and dried under reduced pressure. The (EtO)3Si-CH2CH2CH2-NH-CO-NH-CH2CH2-S-CH2CH2-NH-CO-NH-CH2CH2CH2-Si(OEt)3 product (212.68 g, 98.8% of theory) is obtained as a yellow oil.
The synthetic route of 870-24-6 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; Evonik Industries AG; Moser, Ralph; Mayer, Stefanie; (10 pag.)US2015/329571; (2015); A1;,
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