Pyridine → 2-chloro-5-[3,6-dihydro-2,6-dioxo-3-methyl-4-trifluoromethyl-1(2H)-pyrimidinyl]-4-fluorophenyl chlorosulphate

HRID 1722975

Reaktionsgleichung

Reaktionsgleichung von HRID 1722975
[Cl:1][C:2]1[C:7]([OH:8])=[CH:6][C:5]([N:9]2[C:14](=[O:15])[CH:13]=[C:12]([C:16]([F:19])([F:18])[F:17])[N:11]([CH3:20])[C:10]2=[O:21])=[C:4]([F:22])[CH:3]=1.[S:23](Cl)([Cl:26])(=[O:25])=[O:24].N1C=CC=CC=1>C(Cl)Cl>[S:23]([Cl:26])([O:8][C:7]1[CH:6]=[C:5]([N:9]2[C:14](=[O:15])[CH:13]=[C:12]([C:16]([F:18])([F:17])[F:19])[N:11]([CH3:20])[C:10]2=[O:21])[C:4]([F:22])=[CH:3][C:2]=1[Cl:1])(=[O:25])=[O:24]

Komponenten

5

Edukt 3

HCID 1049PyridineHCID 24648Sulfuryl chlorideHCID 112677571-methyl-6-trifluoromethyl-3-(4-chloro-2-fluoro-5-hydroxyphenyl)-2,4(1H,3H)-pyrimidinedione

Produkt 1

HCID 200260872-chloro-5-[3,6-dihydro-2,6-dioxo-3-methyl-4-trifluoromethyl-1(2H)-pyrimidinyl]-4-fluorophenyl chlorosulphate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

A solution of 10.16 g of 3-(4-chloro-2-fluoro-5 -hydroxyphenyl)-1-methyl-6 -trifluoromethyl-2,4 (1H,3H)-pyrimidinedione and 20.20 g of sulphuryl chloride in 100 ml of methylene chloride is treated with a solution of 3.56 g of pyridine in 10 ml of methylene chloride while stirring and cooling during 5 minutes. The temperature rises to 20° C. The reaction mixture is stirred at 20°-25° C. for 15 minutes, subsequently poured on to ice and stirred vigorously. The organic phase is washed throughly with water, dried over anhydrous sodium sulphate and evaporated to dryness under reduced pressure. The residue is recrystallized from diethyl ether/n-hexane. There is obtained 2-chloro-5-[3,6-dihydro-2,6-dioxo-3-methyl-4-trifluoromethyl-1(2H)-pyrimidinyl]-4-fluorophenyl chlorosulphate m.p. 133°-135° C.

Aufarbeitung

  1. temperaturecooling during 5 minutes
  2. customrises to 20° C
  3. stirringThe reaction mixture is stirred at 20°-25° C. for 15 minutes
  4. additionsubsequently poured on to ice
  5. stirringstirred vigorously
  6. washThe organic phase is washed throughly with water
  7. dry with materialdried over anhydrous sodium sulphate
  8. customevaporated to dryness under reduced pressure
  9. customThe residue is recrystallized from diethyl ether/n-hexane

Quellen und Nachweise

ORD-Eintrag
ord-022611f6d05d4297949c64fd8b8d2105
Quelldatensatz
uspto-grants-1989_08
Patentnummer
US04859229

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