Synthesis method of 1-amino-1, 2, 3-triazole

Abstract

The invention discloses a synthesis method of 1-amino-1, 2, 3-triazole, which comprises the following steps: taking dihydrazone and a salt solvent as an electrolyte of an electrolytic anode, adding a metal oxide into the electrolyte as a catalyst, carrying out electrolytic reaction, and oxidizing dihydrazone into 1-amino-1, 2, 3-triazole. Active oxygen generated by anode electrolytic oxidation is used as an oxidizing agent, dihydrazone and a salt solvent with a certain concentration form an electrolyte of an electrolytic anode, a certain amount of transition metal oxide is added as a catalyst, electrolytic oxidation is performed under a certain current condition, electric energy is converted into chemical energy through electrolysis, and the oxidizing agent is generated; dihydrazone is oxidized into 1-amino-1, 2, 3-triazole, a target product can be well obtained through an electrolytic reaction, and meanwhile, danger and environmental pollution are not generated in the production process; according to the method, the 1-amino-1, 2, 3-triazole is prepared through the electrolytic reaction for the first time, and a new thought is provided for synthesis of the 1-amino-1, 2, 3-triazole.

Description

technical field [0001] The invention relates to the technical field of organic synthesis, in particular to a method for synthesizing 1-amino-1,2,3-triazole. Background technique [0002] 1-Amino-1,2,3-triazoles have attracted extensive attention due to their high nitrogen content, high production enthalpy, and low melting point. Its molecular formula is: C 2 H 4 N 4 , the structural formula is as follows: [0003] [0004] In recent years, energetic salts based on triazoles and tetrazoles have been widely used in the research of energetic materials such as high-energy insensitive explosives, low-sensitivity propellants, and smokeless fireworks due to their low vapor pressure and high density. At present, a variety of ionic salts have been successfully prepared using tetrazole and azotetrazole as the parent; a large number of new 1-R-4-amino groups have also been synthesized using 4-amino-1,2,4-triazole as the parent -1,2,4-triazole (R = methyl, ethyl, n-propyl, allyl...

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Problems solved by technology

[0006] 1), direct ammoniation of 1-H-1,2,3-triazole, usually a mixture of 1-amino and 2-amino substituents is obtained, the resulting mixture is difficult to separate, the raw material is expensive, and the method Difficult to reproduce and the yield of the resulting product is not high

[0007] 2), using active manganese dioxide to catalyze the oxidation of glyoxal dihydrazone to prepare 1-amino 1,2,3-triazole, but since the melting point of 1-amino 1,2,3-triazole is 49-50°C, its The sublimation method used is complex and time-consuming, and is not suitable for mass production

[0008] 3) It is prepared by cyclization reaction of ethylenedihydrazone. This reaction needs to be carried out in aqueous hydrogen peroxide solution, and a certain amount of transition metal oxide must be added to react. The advantage of this method is that it is simple to operate, but its reaction Involving peroxides, such substances are active in chemical properties and have certain dangers

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