36987-29-8Relevant articles and documents
A containing 2, 6 - di-tert-butyl phenol anti-oxidant and its preparation method
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Paragraph 0020; 0055; 0056, (2017/09/26)
The invention reveals a 2,6-di-tert-butylphenol-containing anti-oxidant and a novel preparation method thereof. The method takes titanium, zirconium, hafnium, bismuth, antimony metal complexes as green catalysts, a two-step system is substituted by a series reaction one step method technology, and a high efficiency metal complex catalyst capable of simultaneously catalyzing a direct esterification reaction and a Michael addition reaction is employed to prepare the novel anti-oxidant. The method takes acrylic acid (or acrylic acid ester), pentaerythritol and 2,6-di-tert-butylphenol as main raw materials, under organic solvent or solvent-free condition, the titanium, zirconium, hafnium, bismuth, antimony metal complex green catalysts are reacted to obtain the novel anti-oxidant with high yield. The method has the advantages of low cost, high yield, simple operation and no pollution, and has certain feasibility for realizing industrial production. The preparation method is the green approach with low cost.
