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Sonochemical switching from ionic to radical pathways in the reactions of styrene and trans-β-methylstyrene with lead tetraacetate
Abstract The reactions of styrene and trans-β-methylstyrene with lead tetraacetate in acetic acid are greatly influenced by ultrasonic irradiation to give products resulting mostly from radical chain… Expand
Difference between Sonolysis and Photolysis of Bromotrichloromethane in the Presence and Absence of 1-Alkene
The role of solvent in sonochemical reactions: the case of acetic acid.
- T. Kimura, H. Harada, T. Ando, M. Fujita, J. Lévêque, J. Luche
- Chemistry, Medicine
- Chemical communications
- 17 May 2002
Among the sonolysis products of acetic acid, oxidizing intermediates can play a direct role in reactions run in this solvent, illustrating the fact that organic sonochemistry can originate in organic… Expand
DNA cleavage reaction and linoleic acid peroxidation induced by tea catechins in the presence of cupric ion.
- F. Hayakawa, T. Kimura, +4 authors T. Ando
- Chemistry, Medicine
- Biochimica et biophysica acta
- 27 August 1997
Tea catechins with cupric ion promoted extensive DNA cleavage and fatty acid peroxidation in vitro under aerobic conditions. Neither cupric ions nor polyphenolic compounds including catechins alone… Expand
Solid-state organic reactions proceeding by pulverization: Oxidation and halogenation with iodosobenzene and inorganic solid-supports
Abstract Pulverization-activation method was employed to accelerate solid-state organic reactions. Crushing and grinding of solid mixtures of hydrogen halide-treated silica gels, iodosobenzene and… Expand
Scavenging of the radical species formed in the sonochemical excitation of styrenes
Abstract The sonochemical excitation of 4-substituted styrenes in acetic acid was studied by quenching the radical species with pyrocatechol. The rate-limiting vaporization step, evidenced by the… Expand
Inorganic-solid-supported potassium thiocyanate: study of reagent preparation and a convenient synthesis of tert-alkyl thiocyanates
Reaction de KSCN sur support (silice, alumine, fluorure de calcium) avec les bromures de t-butyle et de t-pentyle, le bromo-1 adamantome et le (bromo-2 methyl-2) propionate d'ethyle
Sonochemical and photochemical reactions of bromotrichloromethane in the presence and absence of 1-alkene.
Comparison between sonolysis and photolysis of bromotrichloromethane in the presence and absence of 1-alkenes was performed to elucidate the characteristics of homogeneous sonochemistry. Results… Expand
Simultaneous irradiation of ultrasound and UV light. Ultrasonic acceleration of the photochemical disappearance of 4,4'-dihalogenated benzils in 1,4-dioxane.
Irradiation of ultrasound accelerated the rate of the photochemical disappearance of 4,4'-dihalogenated benzils in 1,4-dioxane in the order of halogen = I, Br > Cl > F. 4,4'-dimethoxy and… Expand
Selectivity in Catalytic Dehydrogenation with Active Manganese Dioxide
The selectivities in the competitive dehydrogenation of alcohols, such as benzhydrol and cinnamyl alcohol, with active manganese dioxide under catalytic conditions are different from those under the… Expand