Ethyl 2,4-dioxo-4-(pyridin-2-yl)butanoate → ethyl 1-(6-methyl-3-pyridyl)-5-(2-pyridyl)-1H-pyrazole-3-carboxylate

Participants

Reaction Steps

The general procedure of Referential Example 3-2) was repeated through use of the 5-hydrazino-2-methylpyridine (1.20 g) prepared in Referential Example 63 and the 4-(2-pyridyl)-2,4-dioxobutanoic acid ethyl ester (3.48 g) prepared in Referential Example 31, to thereby give the title compound as an oily product (0.459 g, 15%).

Provenance & Evidence