217479-61-3Relevant articles and documents
Preparation method of 2, 4, 6-trichlorophenyl substituted acetone
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Paragraph 0028-0031; 0033-0036, (2021/06/23)
The invention relates to a preparation method of 2, 4, 6-trichlorophenyl substituted acetone, which comprises the following steps: adding 2, 4, 6-trichlorotoluene and a chlorination reagent into an organic solvent at a certain temperature to prepare 2, 4, 6-trichlorophenyl benzyl chloride, then coupling with ethynyl magnesium halide under the action of a metal catalyst, and then carrying out acid catalysis and water addition to finally obtain the product 2, 4, 6-trichlorophenyl substituted acetone. The method provided by the invention has the advantages of many raw material sources, obvious cost advantage, safer and more convenient preparation method, high total yield and less three wastes, and is beneficial to industrialization.
Kinetic studies on the interactions of manganese-porphyrins with peracetic acid. Part 1. Epoxidation of alkenes and hydroxylation of aromatic rings
Banfi, Stefano,Cavazzini, Marco,Pozzi, Gianluca,Barkanova, Svetlana V.,Kaliya, Oleg L.
, p. 871 - 877 (2007/10/03)
The mechanism of peracetic acid interactions with MnIII complexes of meso-tetra(2,6-dichloro-4-R-phenyl)-porphyrins (RTDCPPMnCl; R = CH3O, H, Br, Cl or NO2) in acetonitrile-acetic acid has been studied. Analysis of the kinetic data revealed that both in cis-stilbene epoxidation and naphthalene hydroxylation the first step of the reaction is the reversible formation of an intermediate adduct 'A' between the catalyst and the oxidant. The subsequent irreversible transformation of 'A' with rate constant k2 leads to the formation of two high-valent oxometallo species, [RTDCPPMnV(O)] and supposedly [RTDCPPMnIV(O)]+. These species are in equilibrium and show distinct oxidation abilities towards the substrates.