1,2-Dichloroethane → N-dimethylaminomethyleneguanine

Participants

Reaction Conditions

Reaction Steps

131.6 g (1.8 mol) of N,N-dimethylformamide and 42.8 g (0.36 mol) of thionyl chloride were added to 500 ml of 1,2-dichloroethane, and then 45.3 g (0.3 mol) of guanine (manufactured by Sumika Fine Chemicals Co., Ltd.) was added, followed by stirring at 80° C. for 6 hours. After cooling, the reaction mixture was added to 1000 ml of water to separate out the water layer, and then the water layer was neutralized with sodium hydrogen carbonate. The precipitating crystal was collected by filtration and washed with 100 ml of water to yield 52.6 g (0.255 mol) of a white crystal of N-dimethylaminomethyleneguanine (yield 85%).

Provenance & Evidence