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Water → 4-(3,5-Dichloro-6-fluoro-2-pyridyloxy)-1-butanol

HRID 1448411
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1448411
[Cl:1][C:2]1[C:3]([F:10])=[N:4][C:5](F)=[C:6]([Cl:8])[CH:7]=1.[OH-:11].[Na+].[OH2:13]>C(O)CCCO.C(O)CO>[Cl:8][C:6]1[C:5]([O:11][CH2:3][CH2:2][CH2:7][CH2:6][OH:13])=[N:4][C:3]([F:10])=[C:2]([Cl:1])[CH:7]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 962WaterHCID 14798Sodium HydroxideHCID 6432773,5-Dichloro-2,6-difluoropyridine

Produkt 1

HCID 203795914-(3,5-Dichloro-6-fluoro-2-pyridyloxy)-1-butanol

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 174Ethylene GlycolLösungsmittelHCID 80641,4-Butanediol
Lösungsmittel

Versuchsvorschrift

To a solution of 11 grams (0.06 mole) of 3,5-dichloro-2,6-difluoropyridine in 35 milliliters of 1,4-butanediol was added over a 10 minute period 2.44 grams of sodium hydroxide in 35 milliliters of ethylene glycol. The temperature was maintained at between 50°-60° C. during the addition. The mixture was stirred for 13/4 hours while the temperature was maintained between 60°-65° C. The reaction mixture was cooled and poured into water and thereafter extracted three times with 135 milliliter portions of hot hexane. The mixture was heated to remove most of the hexane by evaporation, cooled and filtered to remove the solid 4-(3,5-dichloro-6-fluoro-2-pyridyloxy)-1-butanol product. The product was recovered in a yield of 11 grams (73 percent of theoretical) and melted at 38°-39° C. Upon analysis, the product was found to have carbon, hydrogen, chlorine and nitrogen contents of 43.2, 3.7, 27.9 and 5.7 percent, respectively, as compared with the theoretical contents of 42.5, 3.9, 27.9 and 5.5 percent, respectively, as calculated for the above named compound.

Aufarbeitung

  1. temperatureThe temperature was maintained at between 50°-60° C. during the addition
  2. temperaturewas maintained between 60°-65° C
  3. temperatureThe reaction mixture was cooled
  4. extractionextracted three times with 135 milliliter portions of hot hexane
  5. temperatureThe mixture was heated
  6. customto remove most of the hexane by evaporation
  7. temperaturecooled
  8. filtrationfiltered
  9. customto remove the solid 4-(3,5-dichloro-6-fluoro-2-pyridyloxy)-1-butanol product
  10. customThe product was recovered in a yield of 11 grams (73 percent of theoretical) and melted at 38°-39° C

Quellen und Nachweise

ORD-Eintrag
ord-f6288f654bac4ae1b5b1e2a1f0f4259e
Quelldatensatz
uspto-grants-1979_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04180395

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