29130-85-6Relevant academic research and scientific papers
Synthesis, characterization, CV, and X-ray structures of aryl cobaloximes
Kumar, Kamlesh,Gupta
, p. 2233 - 2239 (2010/10/04)
Aryl cobaloximes, ArCo(dioxime)2Py (1-9) (Ar = phenyl, 1-naphthyl, 2-naphthyl; dioxime = dmgH, dpgH, gH) have been synthesized and characterized primarily by NMR and elemental analyses and molecular structures of four complexes have also been determined crystallographically. The electronic and steric effects of the aryl ring size and the equatorial dioxime affect the NMR chemical shifts and the X-ray structural parameters. The cyclic voltammetry study shows that the aryl cobaloximes are reduced electrochemically more easily as compared to the corresponding alkyl complexes. These complexes have a robust Co-C bond and are very stable in solution and show no sign of decomposition even on irradiation under oxygen atmosphere-an unusual property of any organocobaloxime.
Electrochemical arylation of cobalt and nickel chelates with diphenyliodonium salts
Magdesieva,Kravchuk,Butin
, p. 85 - 90 (2007/10/03)
Electrochemical arylation of cobalt chelates with diphenyliodonium salts occurs at low cathodic potentials (viz., potential of the first reduction wave of the diphenyliodonium salt) and affords the phenyl derivatives of Co III chelates containi
The reaction of triphenylstannylcobaloxime with enynes under photochemical and thermal conditions
Tada, Masaru,Hanaoka, Yoshinobu
, p. 89 - 95 (2007/10/03)
Enynes having the 4-oxa-6-en-1-yne, 4-tosylaza-6-en-1-yne and 5-oxa-7-en-1-yne system, and 5,7-dioxa-l-octyne were reacted with triphenylstannylcobaloxime, which is a source of the triphenylstannyl radical and cobaloxime radical. The reaction pattern is different under photochemical and thermal conditions. Photochemical reaction gave the products formed by the addition of the triphenylstannyl radical to the acetylene group followed by the tandem addition of the intermediate vinyl radical to the intramolecular olefin. Thermal reaction gave triphenylstannyl-substitution products at the terminal position of the acetylene moiety. Thus, the photochemical reaction takes a free radical pathway, and the thermal reaction is proposed to take a single electron transfer mechanism.
