1,2-dimethyl-1H-imidazole in diethyl ether T=21°C; Irradiation;

1,2-dimethyl-1H-imidazole in diethyl ether T=51°C; Irradiationwith 3,4-dimethyl derivatives, other products; other solvents, without base; Quantum yieldProduct distributionMechanism;