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Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
HRID 375701생성일: 2026년 10월 25일

Phenyl isocyanate → 1-Phenyl-4-cyano-5-(phenylureido)-pyrazole

https://huagongshe.com/reaction/375701

반응식

참여 물질

역할이름HCID투입량
반응물Phenyl isocyanateHCID 7672—
반응물5-Amino-1-phenyl-1H-pyrazole-4-carbonitrileHCID 79256—
반응물Potassium tert-butoxideHCID 23665647—
용매TolueneHCID 1140—
생성물1-Phenyl-4-cyano-5-(phenylureido)-pyrazoleHCID 1899371396%

반응 조건

온도80 °C

반응 단계

9.0 g (80 mmol) of potassium tert-butylate and 8.7 ml (80 mmol) of phenyl isocyanate were added to a solution of 5.52 g (30 mmol) of 1-phenyl-4-cyano-5-aminopyrazole in 100 ml of toluene. The mixture was heated for 15 hours at 80° C. and then cooled, the insoluble constituents were separated off and the resulting solution was acidified with acetic acid, the product crystallizing out. Yield: 96%.

출처 및 근거

DOI10.6084/m9.figshare.5104873.v1
특허 번호US05486618
출처 데이터셋uspto-grants-1996_01
ORD IDord-d3008fed65aa48ba88f258b2fe528189
출처 메모uspto-grants-1996_01