1121-21-7Relevant articles and documents
Electrochemical Acylation of Some Cyclic Olefins by Using Aluminium Anode
Vukicevic, Rastko,Konstantinovic, Stanimir,Joksovic, Ljubinka,Ponticelli, Gustavo,Mihailovic, Mihailo Lj.
, p. 275 - 276 (1995)
The electrochemical acylation of cyclohexene, cycloheptene and their 1-methyl derivatives produces alkyl-cycloalkenyl ketones in good yields.The unsubstituted cycloalkenes give α,β-unsaturated ketones, whereas the 1-substituted derivatives yield mixtures of α,β- and β,γ-unsaturated ketones in which the latter products are predominant.
α-ELIMINATION OF ORGANIC HALIDES FROM ORGANOTELLURIUM(IV) HALIDES
Uemura, Sakae,Fukuzawa, Shin-ichi
, p. 223 - 234 (1984)
Three types of α-elimination (oxidative, photolytic, and thermal) of organotellurium(IV) halides to give organic halides have been disclosed.Treatment of organotellurium(IV) halides with some oxidants, preferably t-butyl hydroperoxide in 1,4-dioxane, acet
Poutsma
, p. 3511 (1963)
Highly selective halogenation of unactivated C(sp3)-H with NaX under co-catalysis of visible light and Ag@AgX
Liu, Shouxin,Zhang, Qi,Tian, Xia,Fan, Shiming,Huang, Jing,Whiting, Andrew
, p. 4729 - 4737 (2018/10/23)
The direct selective halogenation of unactivated C(sp3)-H bonds into C-halogen bonds was achieved using a nano Ag/AgCl catalyst at RT under visible light or LED irradiation in the presence of an aqueous solution of NaX/HX as a halide source, in air. The halogenation of hydrocarbons provided mono-halide substituted products with 95% selectivity and yields higher than 90%, with the chlorination of toluene being 81%, far higher than the 40% conversion using dichlorine. Mechanistic studies demonstrated that the reaction is a free radical process using blue light (450-500 nm), with visible light being the most effective light source. Irradiation is proposed to cause AgCl bonding electrons to become excited and electron transfer from chloride ions induces chlorine radical formation which drives the substitution reaction. The reaction provides a potentially valuable method for the direct chlorination of saturated hydrocarbons.
Visible light induced oxygenation of alkenes with water sensitized by silicon-porphyrins with the second most earth-abundant element
Remello, Sebastian Nybin,Hirano, Takehiro,Kuttassery, Fazalurahman,Nabetani, Yu,Yamamoto, Daisuke,Onuki, Satomi,Tachibana, Hiroshi,Inoue, Haruo
, p. 176 - 183 (2015/10/28)
Silicon as the second most abundant element on Earth was effectively utilized as the central atom in the porphyrin to induce photochemical oxygenation of alkenes as the first example of photocatalytic reaction through activation of water molecule in the presence of K2PtCl6 as an electron acceptor. Oxygen atom of water was confirmed to be incorporated in the oxygenated product by the photoreaction with H218O. The excited triplet state of silicon porphyrin was revealed to be responsible for the photochemical oxygenation. The one-electron oxidized silicon porphyrin was predicted by DFT calculation to have its spin population mostly on the axially ligated hydroxyl oxygen atom. The oxyl radical character of the axial ligand could rationalize the oxygenation reaction.