dichloromethane in dichloromethane Irradiation (UV/VIS); soln. of educt in CH2Cl2 irradiated with SP 2025 argon-ion laser at 514.5 nm, P(λ)=11 mW, T=293 K; not isolated; detected by IR;

in dichloromethane Irradiation (UV/VIS); N2-atmosphere; 0.5 M CCl4 in CH2Cl2, irradiation into MLCT UV-band of title compd.; not isolated, reaction followed by UV/VIS spectroscopy;

in dichloromethane Irradiation (UV/VIS); N2-atmosphere; laser flash photolysis into wavelength of MCLT band of title compd.; not isolated, reaction followed by transient UV/VIS spectroscopy;

in tetrahydrofuran Irradiation (UV/VIS); N2-atmosphere; laser flash photolysis into wavelength of MCLT band of title compd.; not isolated, reaction followed by transient UV/VIS spectroscopy;

in 2-methyl tetrahydrofuran Irradiation (UV/VIS); N2-atmosphere; laser flash photolysis into wavelength of MCLT band of title compd.; not isolated, reaction followed by transient UV/VIS spectroscopy;