16339-18-7Relevant articles and documents
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Vohra et al.
, p. 1128,1130 (1979)
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Preparation method of N-nitrosoiminodiacetonitrile
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Paragraph 0013-0037, (2019/09/13)
The invention discloses a preparation method of N-nitroiminoaminodiacetonitrile. The method comprises the following steps: controlling the feeding temperature at -5-10 DEG C, adding iminodiacetonitrile and an aqueous sulfuric acid solution having a mass fraction of 15-25% into a reaction container, performing stirring to achieve sufficient dissolving, dropwise adding an aqueous sodium nitrite solution having a mass fraction of 15-30%, carrying out a reaction at a controlled reaction temperature of 10-50 DEG C for 0.5-1.5 h, performing extraction on the obtained reaction mixed solution by usingethyl acetate, and distilling off the solvent to dryness in order to obtain the N-nitrosoiminodiacetonitrile. The method is mainly used for preparing N-nitrosoiminodiacetonitrile.
Method for synthesizing 2,6-diamido-pyrazine-1-oxide by using one-pot method
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Paragraph 0033-0035; 0041-0049, (2018/12/05)
The invention discloses a method for synthesizing 2,6-diamido-pyrazine-1-oxide by using a one-pot method and aims to solve the problems of low yields, high impurity contents, intensive conditions, long cycles, heavy waste generation, high cost and inadequacy of industrial production in the prior art. The method for synthesizing 2,6-diamido-pyrazine-1-oxide by using the one-pot method has a synthesis route as shown in the description. The method is high in yield, high in purity, gentle in synthesis condition, short in synthesis cycle, low in waste generation, low in cost and applicable to industrial production.
