Cyanogen Bromide → HCID 135862906, compound

Participants

Reaction Steps

360.8 mg of cyanogen bromide is added dropwise with stirring to a mixture of 500 mg of 1-(1H-pyrrolo[2,3-b]pyridine-3-carbohydrazide, 1.192 g of sodium hydrogencarbonate in 50 ml of water and 5 ml of DMF. The reaction mixture starts to foam, and a fine precipitate forms. This is filtered off with suction after 2 hours and dried, giving 450 mg of 5-(1H-pyrrolo[2,3-b]-pyridin-3-yl)-1,3,4-oxadiazol-2-ylamine (yield: 78.8%); MS-FAB (M+H+)=202.2; Rf (polar method): 1.00 min;

Provenance & Evidence