Hydrochloric Acid → 9-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylic acid

HRID 402286Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 402286
[CH2:1]([O:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[CH:16]=[CH:17][C:18]3[N:26]([CH2:27][CH:28]([CH3:30])[CH3:29])[CH2:25][CH2:24][CH2:23][CH2:22][C:21]([C:31]([O:33]C)=[O:32])=[CH:20][C:19]=3[CH:35]=2)=[CH:11][CH:10]=1)[CH2:2][CH2:3][CH3:4].O1CCCC1.[OH-].[Na+].Cl>O.CO>[CH2:1]([O:5][CH2:6][CH2:7][O:8][C:9]1[CH:10]=[CH:11][C:12]([C:15]2[CH:16]=[CH:17][C:18]3[N:26]([CH2:27][CH:28]([CH3:30])[CH3:29])[CH2:25][CH2:24][CH2:23][CH2:22][C:21]([C:31]([OH:33])=[O:32])=[CH:20][C:19]=3[CH:35]=2)=[CH:13][CH:14]=1)[CH2:2][CH2:3][CH3:4]

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 8028TetrahydrofuranHCID 14798Sodium HydroxideHCID 68649753methyl 9-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylate

Produkt 1

HCID 686501149-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylic acidAusbeute 97,2 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

To methyl 9-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylate (2.65 g) were added tetrahydrofuran (35 ml) and methanol (35 ml), followed by adding aqueous 1N sodium hydroxide solution (11.4 ml), and the mixture was stirred at 90° C. for 7 hours. After cooling to 0° C., water was added and the mixture was neutralized with 1N hydrochloric acid. After extracting with ethyl acetate, the organic layer was washed with saturated brine, and dried with magnesium sulfate. The solvent was distilled off under reduced pressure to give 9-(4-(2-butoxyethoxy)phenyl)-1-isobutyl-2,3,4,5-tetrahydro-1H-1-benzoazonin-6-carboxylic acid (2.5 g) as a yellow oily material.

Aufarbeitung

  1. temperatureAfter cooling to 0° C.
  2. extractionAfter extracting with ethyl acetate
  3. washthe organic layer was washed with saturated brine
  4. dry with materialdried with magnesium sulfate
  5. distillationThe solvent was distilled off under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-6ec63aa17ba44432b62add8b668320f7
Quelldatensatz
uspto-grants-2014_06
Patentnummer
US08741943B2

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