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Potassium Persulfate → 3-(5-chloro-3,4-dihydro-7-fluoro-2H-1-benzopyran-3-on-8-yl)-1-methyl-6-trifluoromethyluracil

HRID 440692
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HRID 440692 반응식
[Cl:1][C:2]1[C:7]2[CH2:8][CH2:9][CH2:10][O:11][C:6]=2[C:5]([N:12]2[C:17](=[O:18])[CH:16]=[C:15]([C:19]([F:22])([F:21])[F:20])[N:14]([CH3:23])[C:13]2=[O:24])=[C:4]([F:25])[CH:3]=1.S(OOS([O-])(=O)=O)([O-])(=O)=[O:27].[K+].[K+]>C(#N)C.O.O.O.O.O.O.S([O-])([O-])(=O)=O.[Cu+2]>[Cl:1][C:2]1[C:7]2[CH2:8][C:9](=[O:27])[CH2:10][O:11][C:6]=2[C:5]([N:12]2[C:17](=[O:18])[CH:16]=[C:15]([C:19]([F:22])([F:20])[F:21])[N:14]([CH3:23])[C:13]2=[O:24])=[C:4]([F:25])[CH:3]=1
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참가 물질

6

반응물 2

HCID 24412Potassium PersulfateHCID 224047533-(5-chloro-3,4-dihydro-7-fluoro-2H-1-benzopyran-8-yl)-1-methyl-6-trifluoromethyluracil

생성물 1

HCID 224047273-(5-chloro-3,4-dihydro-7-fluoro-2H-1-benzopyran-3-on-8-yl)-1-methyl-6-trifluoromethyluracil수율 97.9%

시약·촉매·용매 3

HCID 24463Copper sulfate pentahydrate촉매
HCID 962
Water
용매
HCID 6342Acetonitrile용매

실험 절차

By the method of Example 3, Step A, 0.5 gram (0.0013 mole) of 3-(5-chloro-3,4-dihydro-7-fluoro-2H-1-benzopyran-8-yl)-1-methyl-6-trifluoromethyluracil was reacted with 1.1 grams (0.0040 mole) of potassium persulfate and 0.3 gram (0.0013 mole) of copper(11) sulfate pentahydrate in 30 mL of acetonitrile and 30 mL of water, yielding 0.5 gram of 3-(5-chloro-3,4-dihydro-7-fluoro-2H-1-benzopyran-3-on-8-yl)-1-methyl-6-trifluoromethyluracil. The NMR spectrum was consistent with the proposed structure. This product was combined with another run of this reaction. The combined runs were subjected to column chromatography on silica gel, with 1:4 to 1:2 ethyl acetate:hexane as eluants. The product-containing fractions were combined and concentrated under reduced pressure, yielding 0.8 gram of 3-(5-chloro-3,4-dihydro-7-fluoro-2H-1-benzopyran-4-on-8-yl)-1-methyl-6-trifluoromethyluracil. The NMR spectrum was consistent with the proposed structure.

출처 및 근거

ORD 기록
ord-719abdba96d849c6b69a3e9f9a7ac4a1
출처 데이터셋
uspto-grants-1996_05
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US05521147

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