61551-69-7Relevant articles and documents
2,2'-azo(2-methyl-N-(2-hydroxyethyl)propionamide) preparation method
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Paragraph 0032-0060, (2019/10/04)
The invention discloses a 2,2'-azo(2-methyl-N-(2-hydroxyethyl)propionamide) preparation method, which comprises: adding 2,2'-azobisisobutyronitrile, methanol and toluene to a reactor having a stirring and reflux device, starting stirring, slowly introducing hydrogen chloride gas under cooling, and controlling the temperature of the material and carrying out a thermal insulation reaction; after completing the reaction, adding the reaction liquid into water in a dropwise manner, carrying out a hydrolysis reaction, layering after completing the hydrolysis, adding a small amount of methanol to the organic phase, and carrying out pressure reducing distillation for a certain time; after completing the distillation, slowly adding the organic phase into a mixed solution of sodium methoxide and monoethanolamine in a dropwise manner, and carrying out thermal insulation; after completing the thermal insulation, carrying out solid-liquid separation by a centrifuge, continuously washing the solid with water, crystallizing, carrying out centrifugation until the material is dried, placing the material in a drying device, and drying; and after the drying, cooling the material to a normal temperature to obtain the 2,2'-azo(2-methyl-N-(2-hydroxyethyl)propionamide) product, wherein the product content (HPLC) is more than 98%, and the yield is 55-75%.
Hydrosilylation of unsaturated compounds
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, (2008/06/13)
A method for hydrosilylating an olefinically unsaturated compound comprising contacting the unsaturated compound with a source of silicon in the presence of an azo-containing free-radical catalyst, the hydrosilylated product being a useful crosslinking agent.