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Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HRID 224616생성일: 2026년 10월 26일

1-ethyl-4-hydrazino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid, ethyl ester → HCID 86736977, 화합물

https://huagongshe.com/reaction/224616

반응식

참여 물질

역할이름HCID투입량
반응물1-ethyl-4-hydrazino-1H-pyrazolo[3,4-b]pyridine-5-carboxylic acid, ethyl esterHCID 162357—
반응물(2Z)-3-Amino-2-butenenitrileHCID 5325263—
용매1-ButanolHCID 263—
생성물HCID 86736977HCID 86736977—

반응 단계

249 g of 1-ethyl-4-hydrazino-1H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid, ethyl ester (1 mol) and 82 g of 3-aminocrotononitrile (1 mol) are heated together in 1.5 liters of butyl alcohol with stirring for 24 hours. The solvent is removed in vacuo and the residual 4-[2-(2-cyano-1-methylethylidene)hydrazino]-1-ethyl-1H-pyrazolo-[3,4-b]pyridine-5-carboxylic acid, ethyl ester is recrystallized from alcohol, yield 309 g (80%); m.p. 190°-191°.

출처 및 근거

DOI10.6084/m9.figshare.5104873.v1
특허 번호US04233300
출처 데이터셋uspto-grants-1980_11
ORD IDord-3c74154d899441978a85a170e65d1c97
출처 메모uspto-grants-1980_11