PROCESS OF OBTAINING 4,4'-(PROPANEDIAMIDE) SODIUM DIBENZOATE Russian patent published in 2017 - IPC C07C231/02 C07C233/54 

Abstract RU 2624729 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a process of obtaining 4,4'-(propanediamide) sodium dibenzoate of the formula I , which can be used in medicine as a potential antiatherosclerotic, antialcoholic, antioxidant and antihypertensive agent. The method consists in reacting p-aminobenzoic acid with sodium carbonate in a molar ratio of 2:1 with heating to 50-60°C in an aprotic solvent medium (for example, N,N-dimethylformamide or dimethylsulfoxide). After this, a stoichiometric amount of malonic ether is added to the resulting sodium salt of p-aminobenzoic acid, the reaction mixture is heated to a temperature of 150-155°C, the volatile fraction is distilled off and the desired product is isolated.

EFFECT: method allows to reduce the number of stages and does not require the use of toxic reagents.

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RU 2 624 729 C1

Authors

Yuskovets Valerij Nikolaevich

Chernov Nikita Maksimovich

Yakovlev Igor Pavlovich

Narkevich Igor Anatolevich

Dates

2017-07-06Published

2016-06-21Filed