1806-26-4Relevant articles and documents
Mesoporous aromatic frameworks modified by metal chlorides in phenol alkylation with oct-1-ene
Talanova, M. Yu.,Guojun,Karakhanov,Anisimov
, p. 2083 - 2087 (2019)
Mesoporous polyaromatic frameworks (PAF) based on tetraphenylmethane were synthesized. The PAF/AlCl3 and PAF/FeCl3 catalysts were prepared by impregnating the synthesized products with aluminum and iron chlorides, respectively. The r
Preparation method of P-octyl phenol
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Paragraph 0030; 0042; 0045-0046; 0049-0050; 0053-0054; 0057, (2021/03/31)
The invention relates to a preparation method of p-octyl phenol, belonging to the technical field of chemical synthesis. The preparation method comprises the following steps: carrying out a condensation reaction on p-hydroxybenzaldehyde and 2-heptanone under alkaline conditions, and carrying out catalytic hydrogenation reduction to obtain p-octyl phenol. The method disclosed by the invention has the advantages that (1) the yield and the purity of p-octyl phenol are high, no ortho-position byproduct is produced, total yield is 95% or above, the purity is as high as 99.9%, and an application range is expanded; 2) good economic performance is realized, byproducts are few, the generation of three wastes in separation and purification is reduced, the method is greener and more environment-friendly than other methods, and a used solvent and a used catalyst can be recycled. The p-octyl phenol prepared by the method can meet the use requirements of the chemical industry and the pharmaceuticalindustry.
Synthesis and critical micelle concentration of a series of gemini alkylphenol polyoxyethylene nonionic surfactants
Yang, Fang,Li, Gang,Xu, Nian,Liu, Rong,Zhang, Song-Mei,Wu, Zeng-Jiang
, p. 339 - 345 (2012/06/30)
A series of gemini n-alkylphenol polyoxyethylene surfactants (GAP) were successfully synthesized and their molecular structure were confirmed by NMR and FTIR spectrum. Using the same synthesis route, a Gemini nonylphenol polyoxyethylene surfactant (GNP) was synthesized using an industrial nonylphenol product and paraformaldehyde, and its molecular structure was also characterized by 1H-NMR and FTIR spectra. The optimal reaction conditions were established. The critical micelle concentration (CMC) values of GAP were determined by means of Wilhelmy plate method and steady-state fluorescence probe method. The experimental results show how the lengths of the hydrophilic polyoxyethylene chain and the hydrophobic tail alter the CMC values. The CMC values of the GAP are found to be much lower than those of corresponding conventional single tail nonionic surfactants of the polyethoxylated alkylphenol type, which indicates that the gemini species exhibit a better surface activity. AOCS 2011.