25808-30-4, 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. 25808-30-4, name is 2-(Methylamino)acetonitrile hydrochloride, A new synthetic method of this compound is introduced below.
EXAMPLE 8 3-Amino-1,4,5-trimethyl-1H-pyrrole-2-carbonitrile 10.3 ml (0.74 mole) of triethylamine, 7.2 g (0.74 mole) of 3-cyanobutan-2-one and 0.5 g of p-toluenesulfonic acid are successively added to a suspension of 7.8 g (0.74 mole) of N-methylaminoacetonitrile hydrochloride in 70 ml of chloroform, and the mixture is boiled for 5 hours, using a water separator. After it has been boiled, the mixture is washed twice with 10 ml of water each time and dried over sodium sulfate; the solvent is then stripped off in vacuo. In order to remove all of the chloroform, the residue is twice taken up in 100 ml (each time) of dry ethanol, and the mixture concentrated each time in vacuo. The resulting oil is warmed (bath temperature of 50¡ã C.) in 100 ml of 1 N sodium ethylate/ethanol for 2 hours; some of the ethanol is removed. The mixture is then taken up in 100 ml of water and extracted several times with methylene chloride. After being dried over sodium sulfate and concentrated on a rotary evaporator, the extracts yield a solid residue, which is recrystallized from diisopropyl ether.
The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.
Reference:
Patent; BYK Gulden Lomberg Chemische Fabrik Gesellschaft mit beschrankter Haftung; US4363816; (1982); A;,
Nitrile – Wikipedia,
Nitriles – Chemistry LibreTexts