240408-78-0Relevant articles and documents
Study of methods of preparation of 1,4-diglycidyltetrazolone. New synthesis of triglycidylisocyanurate
Korotkikh,Korotkikh
, p. 48 - 51 (1996)
1,4-Diglycidyltetrazolone was synthesized for the first time by the reaction of tetrazolone and epichlorohydrin with subsequent treatment of the products of addition with a base. The basic directions of the reaction of carbamoyl azide with epichlorohydrin, which yields triglycidylisocyanurate and diglycidylcarbamoyl azide, were investigated. The features of the synthesis and properties of the substances obtained were described. 1996 Plenum Publishing Corporation.
Preparation method of triglycidyl isocyanurate
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Paragraph 0038-0051, (2021/02/06)
The invention relates to a preparation method of triglycidyl isocyanurate. The preparation method comprises the steps that cyanuric acid and dichloropropanol are subjected to a heating reaction in thepresence of alkali and a solvent, the molar ratio of cyanuric acid to dichloropropanol is 1: 2 to 8, and the molar ratio of the addition amount of alkali to the addition amount of dichloropropanol is2: 1. The raw material conversion rate of the triglycidyl isocyanurate prepared by the method is high and reaches 95% or above, the product selectivity is good and reaches 95% or above, and the product yield is high and reaches 90% or above and is far higher than the yield of about 80% in the prior art.
Method for synthesizing TGIC and coproducing ECH from dichloropropanol
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Paragraph 0033; 0035-0037; 0039-0041; 0043-0045; 0047-0049, (2020/11/23)
The invention provides a method for synthesizing TGIC and coproducing ECH from dichloropropanol. The method comprises the following steps: (1) proportionally adding cyanuric acid, dichloropropanol, aquaternary ammonium salt phase transfer catalyst and water, heating and stirring the mixture and carrying out temperature control reaction in stages, heating and stirring the mixture to a certain temperature, carrying out heat preservation reaction for a period of time, heating the mixture, carrying out heat preservation reaction for a period of time, and cooling a reaction product; (2) in the reaction system in the step (1), adjusting the vacuum degree, dropwise adding liquid caustic soda while carrying out steam stripping with water within a certain period of time, carrying out heat preservation reaction for a period of time after dropwise adding is finished, and then removing solid salt through plate-and-frame filter pressing; (3) carrying out reduced pressure distillation on the filtrate obtained in the step (2) to remove ECH, and collecting a crude product TGIC from the kettle liquid; (4) recrystallizing the crude product TGIC in an organic solvent for a period of time under a low-temperature condition, and then centrifugally separating, washing and drying the product to obtain a TGIC product. According to the treatment method disclosed by the invention, the cost of TGIC can be effectively reduced, an important organic chemical raw material ECH is co-produced, and the method is low-carbon and environment-friendly.