1: With lithium hydride in tetrahydrofuran T=20°C; Inert atmosphere; 2: With AlCl3, aluminium chloride in tetrahydrofuran T=0 - 20°C; Inert atmosphere;

bis-(trifluoromethylsulphonyl)amine in dichloromethane-d2 T=20°C; Inert atmosphere;

di-tert-butyl peroxide in further solvent(s) Kinetics; byproducts: t-butanol; Irradiation (UV/VIS); flash photolysis with light pulses (50 Hz, 308 nm, 10 ns duration, XeClexcimer laser) in cyclopropane-t-pentyl alcohol soln. (3:1) at 224 K, or in cyclopropane-t-pentyl alcohol-t-BuOH soln. (6:2:1), or in cyclopropane-oxirane soln. (3:1); detected by ESR spectroscopy;;