Ethanol → HCID 20093979, compound

Participants

Reaction Conditions

Reaction Steps

4. 15.7 g of 2-(chloromethyl)-4-hydrazinothieno[3,2-d]pyrimidine are suspended in 280ml of ethyl orthoformate. The suspension is heated (bath temp. 125° C.) while stirring and the ethanol which results is distilled off. After 3 h., the mixture is cooled to 0° C., the precipitate is filtered off and washed with ethanol. The product is dried in a vacuum. There are obtained 15.2 g of 5-(chloromethyl)thieno[2,3-e][1,2,4]triazolo[4,3-c]-pyrimidine. m.p. above 400° C. (dec.).

Provenance & Evidence