29510-54-1Relevant articles and documents
Anionic Surfactants Catalysis in the Two-phase Oxidation of Toluene Derivatives with Cerium Ammonium Nitrate. A Facile Synthesis of Some Benzaldehydes
Skarzewski, Jacek,Mlochowski, Jacek
, p. 963 - 967 (2007/10/02)
The catalytic activity of sodium 1-dodecanesulfonate, sodium dodecyl sulfate, disodium 2-dodecyl-1,3-propanediyl disulfate (1) and trisodium 2,2-bis(sulfonatemethyl)tetradecylsulfate(2) was tested in the two-phase oxidation of p-xylene with cerium ammonium nitrate (CAN).Also various tolouene derivatives were oxidized with CAN in the presence of sodium dodecyl sulfate.The observed reaction enhancements are discussed in terms of the micelle-substrate interaction.The catalytic oxidation of some toluene derivatives (3) with a subsequent thermal rearrangement of the oxida tion product offers a simple synthetic route to benzaldehydes 4.
TWO-PHASE OXIDATION OF SOME AROMATIC COMPOUNDS WITH CERIUM AMMONIUM NITRATE IN THE PRESENCE OF SURFACTANTS.
Skrzewski,Cichacz
, p. 271 - 274 (2007/10/02)
The two-phase oxidations of 3,6-dimethoxydurene and xylenes in cyclohexane solutions with the aqueous solution of cerium ammonium nitrate were carried out in the presence of cationic, nonionic, and anionic surfactants. Both cationic (ammonium salt) and nonionic (Dipodand) surfactants inhibited the reaction. The anionic surfactant (sodium dodecyl sulfate, SDS) catalyzed these oxidations. From the product distribution it was concluded that the catalytic action of SDS is due to the binding of aromatic compounds and the Ce(IV) ions to the surface of the SDS micelles. The micellar oxidant has the high oxidation potential which should allow to oxidize the comparatively nonreactive substrates.
Photooxidation of o-Xylene in the NO-H2O-Air System
Takagi, H.,Washida, N.,Akimoto, H.,Nagasawa, K.,Ususi, Y.,Okuda, M.
, p. 478 - 483 (2007/10/02)
The reaction products in the photooxidation of o-xylene were analyzed by a new gas chromatograph/photoionization mass spectrometer.There were two types of reaction products, i.e., high- and low-boiling point products.Tolualdehyde, dimethylphenols, and dimethylnitrobenzene were the main high-boiling point products and formaldehyde, acetaldehyde, glyoxal, methylglyoxal, and biacetyl were identified as low-boiling point products.The ratio of the total amount of high-boiling point products formed to the amount of o-xylene consumed was about 17percent.On the other hand, the low-boiling point products collected amounted to about 45percent of the o-xylene consumed.The reaction mechanisms and the importance of the cleavage reaction of the aromatic ring were discussed.
