31221-84-8Relevant articles and documents
Controllable chemoselectivity in the coupling of bromoalkynes with alcohols under visible-light irradiation without additives: Synthesis of propargyl alcohols and α-ketoesters
Ni, Ke,Meng, Ling-Guo,Ruan, Hongjie,Wang, Lei
supporting information, p. 8438 - 8441 (2019/07/22)
The chemoselectivity of visible-light-induced coupling reactions of bromoalkynes with alcohols can be controlled by simple changes to the reaction atmosphere (N2 or O2). A N2 atmosphere favours propargyl alcohols via a direct C-C coupling process, whereas an O2 atmosphere results in the generation of α-ketoesters through the oxidative CC/C-O coupling pathway.
Oxidation of diazo compounds by triphenyl phosphite ozonide. Quenching of singlet oxygen by diazo compounds
Shereshovets, V. V.,Korotaeva, N. M.,Vorob'ev, A. S.,Komissarov, V. D.,Furlei, I. I.
, p. 1479 - 1483 (2007/10/02)
The reaction of triphenyl phosphite ozonide with various types of diazo compounds results in their oxidation, which is accomplished by singlet oxygen (1O2) evolved during thermal decomposition of the ozonide.A decrease in the ionization potential of the substrate results in an increase in the overall rate constant of quenching of 1O2.In the case of 9-diazofluorene, the main channel of 1O2 quenching is physical quenching. - Key words: phosphite ozonides, singlet oxygen; diazo compounds; ionization potential; rate constant of quenching of singlet oxygen.
