With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.39539-66-7,4-Methylpiperazine-1-carbonyl chloride,as a common compound, the synthetic route is as follows.
EXAMPLE 2 1-Methyl-4-[N-(3,4,5-trimethoxyphenyl)-carbamoyl]piperazine (hydrochloride) A solution of 10 g (0.061 mole) 1-methyl-4-chloroformyl-piperazine in 100 ml dry methylene chloride is added to a solution of 11.2 g (0.061 mole) 3,4,5-trimethoxy-aniline in a 100 ml methylenechloride. After stirring at ambient temperature for 24 hours, the solvent is evaporated off in vacuo; the residue is dissolved in the minimum of ethanol and then the crude hydrochloride precipated by the addition of diethyl ether, and dried. Purification by recrystallisation from an acetone 3-ethanol 1 mixture gives the pure product (9.4 g; 44% yield) which melts at 184-86 C., 39539-66-7
As the paragraph descriping shows that 39539-66-7 is playing an increasingly important role.
Reference£º
Patent; Metabio-Joullie; US4252804; (1981); A;,
Piperazine – Wikipedia
Piperazines – an overview | ScienceDirect Topics