Hydrochloric Acid → HCID 22344586, Verbindung

HRID 2299862Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2299862
O.[OH-].[Li+].[Cl:4][C:5]1[CH:10]=[CH:9][C:8](/[C:11](=[N:22]/[O:23][CH2:24][C:25]2[CH:30]=[CH:29][C:28]([O:31][CH2:32][C:33]3[N:34]=[C:35]([C:39]4[CH:44]=[CH:43][CH:42]=[CH:41][CH:40]=4)[O:36][C:37]=3[CH3:38])=[CH:27][CH:26]=2)/[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][C:18]([O:20]C)=[O:19])=[CH:7][CH:6]=1.O.Cl>O1CCCC1.CO>[Cl:4][C:5]1[CH:6]=[CH:7][C:8](/[C:11](=[N:22]/[O:23][CH2:24][C:25]2[CH:30]=[CH:29][C:28]([O:31][CH2:32][C:33]3[N:34]=[C:35]([C:39]4[CH:40]=[CH:41][CH:42]=[CH:43][CH:44]=4)[O:36][C:37]=3[CH3:38])=[CH:27][CH:26]=2)/[CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][C:18]([OH:20])=[O:19])=[CH:9][CH:10]=1

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 168937Lithium hydroxide, monohydrateHCID 22344558HCID 22344558, Verbindung

Produkt 1

HCID 22344586HCID 22344586, VerbindungAusbeute 89 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

Lithium hydroxide monohydrate (160 mg) was added to a solution of methyl E-8-(4-chlorophenyl)-8-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyimino]octanoate (730 mg) in tetrahydrofuran (10 ml)-water (4 ml)-methanol (4 ml) and stirred at room temperature for 3 hours. 1N hydrochloric acid (3.9 ml) was added to the reaction mixture and extracted with ethyl acetate. The ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride, dried (MgSO4) and concentrated. The residue was recrystallized from ethyl acetate-hexane to obtain E-8-(4-chlorophenyl)-8-[4-(5-methyl-2-phenyl-4-oxazolylmethoxy)benzyloxyimino]octanoic acid (632 mg, yield 89%) as colorless crystals. m.p. 90-91° C.

Aufarbeitung

  1. extractionextracted with ethyl acetate
  2. washThe ethyl acetate layer was washed with an aqueous saturated solution of sodium chloride
  3. dry with materialdried (MgSO4)
  4. concentrationconcentrated
  5. customThe residue was recrystallized from ethyl acetate-hexane

Quellen und Nachweise

ORD-Eintrag
ord-472bca2fd1d04097b34b913be995cd18
Quelldatensatz
uspto-grants-2002_12
Patentnummer
US06495581B1

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