119-47-1Relevant articles and documents
Regiospecific, one-pot, and pseudo-five-component synthesis of 6,6′-(arylmethylene)bis(2-(tert -butyl)4-methylphenol) antioxidants using highly sulfonated multi-walled carbon nanotubes under solvent-free conditions
Fareghi-Alamdari, Reza,Golestanzadeh, Mohsen,Agend, Farima,Zekri, Negar
, p. 982 - 991 (2013)
This is the first report of an innovative, one-pot, pseudo-five-component, and solvent-free synthesis of 6,6′-(arylmethylene)bis(2-(tert-butyl)4- methylphenol) antioxidants from p-cresol, methyl tert-butyl ether, and aldehydes in the presence of sulfonate
Trialkylamine controlled phenol-for maldehyde reaction over clay catalysts: Selective and environmentally benign synthesis of salicylic aldehydes
Bigi, Franca,Conforti, Maria Lina,Maggi, Raimondo,Sartori, Giovanni
, p. 2709 - 2712 (2000)
Substituted salicylic aldehydes 6 are synthesised in good yields and excellent selectivities by reaction of phenols 1 with formaldehyde 2 over montmorillonite KSF-Et3N as a heterogeneous and reusable catalyst. (C) 2000 Elsevier Science Ltd.
Antioxidant bisphenol compounds clean production method and application (by machine translation)
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Paragraph 0054; 0055, (2016/11/28)
The invention discloses a double-phenolic compound antioxidant clean production process and application. The clean production method comprises: in a solid acid catalyst, and in order to aliphatic aldehyde and dialkyl substituted phenol as raw material, the raw material and the catalyst is placed in a closed environment reaction, and the reaction of the reaction product after the end of filter heat, that is, to obtain the target product, which can be used for preparing lubricating oil composition or as a plastic, rubber, such as anti-aging agent. Antioxidant bisphenol compounds of this invention for the production of simple operation, mild conditions, such as the sources of the raw materials and catalyst, is cheap and easy to obtain, the reaction cycle is short, it is easy to control, process with high safety, low energy consumption in the producing process, high yield, high purity of the product, in the reaction process does not need to add water, organic solvent, surface active agent, there is no need to wash the product later, will not produce waste water, can greatly control and reducing pollutant emissions, is a safe and energy-saving, environmental protection art. (by machine translation)
Sonocatalytic removal of naproxen by synthesized zinc oxide nanoparticles on montmorillonite
Karaca, Melike,Kiran?an, Murat,Karaca, Semra,Khataee, Alireza,Karimi, Atefeh
, p. 250 - 256 (2016/01/16)
ZnO/MMT nanocomposite as sonocatalyst was prepared by immobilizing synthesized ZnO on the montmorillonite surface. The characteristics of as-prepared nanocomposite were studied by scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HR-TEM) and X-ray diffraction (XRD) techniques. The synthesized samples were used as a catalyst for sonocatalytic degradation of naproxen. ZnO/MMT catalyst in the presence of ultrasound irradiation was more effective compared to pure ZnO nanoparticles and MMT particles in the sonocatalysis of naproxen. The effect of different operational parameters on the sonocatalytic degradation of naproxen including initial drug concentration, sonocatalyst dosage, solution pH, ultrasonic power and the presence of organic and inorganic scavengers were evaluated. It was found that the presence of the scavengers suppressed the sonocatalytic degradation efficiency. The reusability of the nanocomposite was examined in several consecutive runs, and the degradation efficiency decreased only 2% after 5 repeated runs. The main intermediates of naproxen degradation were determined by gas chromatography-mass spectrometry (GC-Mass).