反应详情

Fifty g of 1,3-dimethyl-4-nitropyrazole-5-carboxamide dissolved in methanol, 2 g 50% aqueous Raney nickel added, was reduced under a hydrogen atmosphere until a 8.15 pound drop in pressure noted. The reaction mixture was filtered, the filtrate concentrated, and the crude material recrystallized in ethyl acetate to yield the product, mp. 154°-155° C.

1. filtrationThe reaction mixture was filtered
2. concentrationthe filtrate concentrated
3. customthe crude material recrystallized in ethyl acetate
4. customto yield the product, mp. 154°-155° C.