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Dimethylformamide → 3-(5-Nitrofuran-2-yl)-1-phenyl-1H-pyrazole-4-carbonyl chloride

HRID 839239
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HRID 839239 반응식
[N+:1]([C:4]1[O:8][C:7]([C:9]2[C:13]([C:14](N)=[O:15])=[CH:12][N:11]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[N:10]=2)=[CH:6][CH:5]=1)([O-:3])=[O:2].S(Cl)([Cl:25])=O.CN(C)C=O>C(Cl)(Cl)(Cl)Cl>[N+:1]([C:4]1[O:8][C:7]([C:9]2[C:13]([C:14]([Cl:25])=[O:15])=[CH:12][N:11]([C:17]3[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=3)[N:10]=2)=[CH:6][CH:5]=1)([O-:3])=[O:2]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 6228DimethylformamideHCID 24386Thionyl ChlorideHCID 203261233-(5-Nitrofuran-2-yl)-1-phenyl-1H-pyrazole-4-carboxamide

생성물 1

HCID 203259333-(5-Nitrofuran-2-yl)-1-phenyl-1H-pyrazole-4-carbonyl chloride수율 89%

시약·촉매·용매 1

HCID 5943Carbon Tetrachloride용매

실험 절차

Heat 40 g of 3-(5-nitro-2-furyl)-1-phenylpyrazole-4-carboxamide together with 290 ml of thionyl chloride and 1 ml of dimethylformamide for 16 hours at boiling point. Cool the resulting solution, draw off the formed precipitate and wash it with thionyl chloride and with carbon tetrachloride to obtain an 89% yield of 3-(5-nitro-2-furyl)-1-phenylpyrazole-4-carboxylic acid chloride [m.p. 208° to 210° C (from dioxane)].

후처리

  1. temperatureCool the resulting solution
  2. washwash it with thionyl chloride

출처 및 근거

ORD 기록
ord-d080d09299164235ae3fa50ae9ad0846
출처 데이터셋
uspto-grants-1978_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04093812

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