o-Cyclohexylphenol → 3-Pyridinecarboxylic acid, 2-cyclohexylphenyl ester, hydrochloride

HRID 2059020

Reaktionsgleichung

Reaktionsgleichung von HRID 2059020
[CH:1]1([C:7]2[CH:12]=[CH:11][CH:10]=[CH:9][C:8]=2[OH:13])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.Cl.[C:15]([Cl:23])(=[O:22])[C:16]1[CH:21]=[CH:20][CH:19]=[N:18][CH:17]=1>N1C=CC=CC=1>[ClH:23].[C:15]([O:13][C:8]1[CH:9]=[CH:10][CH:11]=[CH:12][C:7]=1[CH:1]1[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1)(=[O:22])[C:16]1[CH:21]=[CH:20][CH:19]=[N:18][CH:17]=1

Komponenten

4

Edukt 2

HCID 8396o-CyclohexylphenolHCID 884383-Pyridinecarbonyl chloride, hydrochloride (1:1)

Produkt 1

HCID 30596433-Pyridinecarboxylic acid, 2-cyclohexylphenyl ester, hydrochloride

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel

Reaktionsbedingungen

Temperatur
30 °C

Versuchsvorschrift

15 g (85 mmol) of o-cyclohexylphenol and 16.5 g (93 mmol) of nicotinic acid chloride hydrochloride was mixed with 200 ml of dry pyridine and stirred for 24 hours at 30° C. After cooling precipitated pyridine hydrochloride was sucked off and 300 ml of water added. The precipitated raw product was washed with two 200 ml portions of water, dissolved in alcohol and reduced by means of a rotary evaporator. The remaining viscous oil was dissolved in 500 ml of dry ether and hydrochlorinated with HCl gas. Subsequently, the mixture was filtered, washed with ether and dried.

Aufarbeitung

  1. temperatureAfter cooling
  2. customprecipitated pyridine hydrochloride
  3. addition300 ml of water added
  4. customThe precipitated raw product
  5. washwas washed with two 200 ml portions of water
  6. dissolutiondissolved in alcohol
  7. customreduced by means of a rotary evaporator
  8. dissolutionThe remaining viscous oil was dissolved in 500 ml of dry ether and hydrochlorinated with HCl gas
  9. filtrationSubsequently, the mixture was filtered
  10. washwashed with ether
  11. customdried

Quellen und Nachweise

ORD-Eintrag
ord-5f004323ff1b4bc3b27c6cb75a6e1e99
Quelldatensatz
uspto-grants-1982_03
Patentnummer
US04321268

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