2424-01-3Relevant articles and documents
Synthesis of high-molecular-weight polyamine by radical polymerization of N,N-diallyl-N-methylamine
Vasilieva,Kleshcheva,Gromova,Rebrov,Filatova,Krut'ko,Timofeeva,Topchiev
, p. 431 - 437 (2000)
The first synthesis of high-molecular-weight poly( N,N-diallyl-N-methylamine) by thermal (at 30 and 50 °C) and photoinduced (at 21 °C) radical polymerization of N,N-diallyl-N-methylamine (DAMA) in aqueous solution in the presence of an equimolar amount of trifluoroacetic acid (TFA) and by polymerization of the newly synthesized equimolar DAMA · TFA salt is reported. Data of 1H NMR spectroscopy indicate that the molecules of the monomer under chosen conditions are in the protonated form. This leads to a decrease in the contribution of the reaction of degradative chain transfer to the monomer and its transformation into effective chain transfer to the monomer. A bimolecular chain termination mechanism was established and the possibility of controlling the polymerization rate and the molecular weight of the polymer was demonstrated.
Dieck,Friedel
, p. 173,176, 178, 179 (1968)
Production method of N-methyldiallylamine
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Paragraph 0022-0045, (2021/09/04)
The invention discloses a production method of N-methyldiallylamine. The method comprises the following steps: adding monomethylamine and water into a high-pressure reaction kettle, adding a phase transfer catalyst, and dropwise adding chloropropene and an alkali liquor catalyst into the high-pressure reaction kettle to obtain a reaction solution; and layering the reaction solution, wherein the upper oil phase is a N-methyldiallylamine crude product; and pumping the crude product into a rectifying still for refinement. According to the method, the amination reaction is adopted, the reaction speed is high, the raw materials can fully react, the yield is high (99% or above), few byproducts are generated, and meanwhile, the byproduct N-methylallylamine can be repeatedly reacted; through the method, the prepared N-methyldiallylamine is colorless transparent liquid in appearance; when the chromaticity is measured by a colorimeter, the chromaticity is smaller than or equal to 17, the content detected by a GC gas chromatography is larger than or equal to 98.5%, and the moisture is smaller than or equal to 0.1%; the purity of the N-methyldiallylamine is high; and lower-layer wastewater is easy to treat, and the cost of subsequent wastewater treatment is saved.
1,4-Dioxane-Tuned Catalyst-Free Methylation of Amines by CO2 and NaBH4
Guo, Zhiqiang,Zhang, Bo,Wei, Xuehong,Xi, Chanjuan
, p. 2296 - 2299 (2018/07/31)
A catalyst-free reductive functionalization of CO2 with amines and NaBH4 was developed. The N-methylation of amines was carried out with CO2 as a C1 building block and 1,4-dioxane as the solvent. Notably, the six-electron reduction of CO2 to form the methyl group occurred simultaneously with formation of the C?N bond to give the N-methylated amine.
