137706-80-0Relevant articles and documents
Degradation and photodegradation of tetraacetylethylenediamine (TAED) in the presence of iron (III) in aqueous solution
Brand,Mailhot,Bolte
, p. 2637 - 2648 (1997)
The dark degradation of tetraacetylethylenediamine (TAED) was investigated, It is a slow process which is favored in acidic medium, There is a hydrolysis of an imide group with the scission of the C-N bond giving rise to the triacetyl derivative (TAED'). When allowed to stand for longer times a second acetyl group is eliminated with the formation of the symetric diacetyl derivative (DAED). The degradation of TAED photoinduced by iron (m) was also investigated. It appears a faster degradation which does not lead to the same products. The process only involves 'OH radicals formed upon photolysis of aquocomplex of iron (III). They preferentially abstract a hydrogen from the methylene group. The degradation is then assisted by oxygen and leads to the formation of carbonylated oxidation products.
Three of a kind of high purity process for the preparation of acetyl ethylenediamine
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Paragraph 0029 - 0034, (2017/02/09)
the invention belongs to the technical field of preparation method of amide compounds in organic chemistry, and particularly relates to a preparation method of high purity triacetyl ethylene diamine. The method comprises the following steps: a, adding diacetyl ethylenediamine and acetic anhydride into a reaction vessel; b, heating for reaction at the temperature of 100-140 DEG C; c, cooling for crystallization and filtering solid products to obtain a filtrate; d, concentrating and crystallizing the filtrate to obtain a triacetyl ethylene diamine crude product; e, adding a solvent into the crude product and carrying out recrystallization for purification; and f, filtering, washing and drying to obtain a triacetyl ethylene diamine pure product. The method provided by the invention has simple technological process, can prepare high purity triacetyl ethylene diamine, which is used as a standard sample to meet the establishment of a gas phase detection method, and has extremely vital significance to TAED synthesis study and application mechanism research.
Kinetic model of acylation of diacetylethylenediamine
Platonova,Akhmetshin,Kossoi,Vdovets,Laskin,Malin,Sitdikov
experimental part, p. 1808 - 1812 (2009/09/25)
Descriptive kinetics of synthesis of tetraacetylethylenediamine by acylation of diacetylethylenediamine with acetic acid anhydride was examined. The apparent rate constants of the process were obtained, and a mathematical model adequately describing the process was constructed.
Kinetics of the Hydrolysis and Perhydrolysis of Tetraacetylethylenediamine, a Peroxide Bleach Activator
Davies, D. Martin,Deary, Michael E.
, p. 1549 - 1552 (2007/10/02)
Hydrogen peroxide and water react with tetraacetylethylenediamine (TAED) to form consecutively triacetylethylenediamine and diacetylethylenediamine with the release of two molecules of peracetic acid or acetic acid.The effect of pH, specific buffers and temperature on the rates of hydrolysis and perhydrolysis are compared.Peracetic acid reacts with TAED very slowly.The ratio of the second-order rate constants for the reaction of TAED with hydroperoxide and peracetate anions is exceptionally large after taking into account the difference in pKa values of their conjugate acids.The relative reactivity of various nucleophiles with TAED is discussed in terms of its performance as a bleach activator.