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HRID 34511作成日：2026年10月26日

2-Hydrazinopyridine → ethyl 5-amino-1-(pyridin-2-yl)-1H-pyrazole-4-carboxylate

https://huagongshe.com/reaction/34511

反応式

関与物質

役割名称HCID仕込み量
反応物2-HydrazinopyridineHCID 78645—
反応物2-Propenoic acid, 2-cyano-3-ethoxy-, ethyl esterHCID 78943—
溶媒EthanolHCID 702—
生成物ethyl 5-amino-1-(pyridin-2-yl)-1H-pyrazole-4-carboxylateHCID 742041—

反応手順

Ethyl(ethoxymethylene)cyanoacetate, 19.5 g, was added in one portion into a solution of 2-hydrazinopyridine, 12.5 g, in 100 mL of absolute ethanol. The reaction was then heated at reflux for 21/2 hours and cooled. The solid which formed was collected by filtration and washed with absolute ethanol. After air-drying, the product weighed 22.6 g and melted at 92°-93° C.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US04762550
出典データセットuspto-grants-1988_08
ORD IDord-411766317f3e45ec88ee92981df8d39a
出典メモuspto-grants-1988_08