Hydrochloric Acid → HCID 59212055, Verbindung

HRID 468603Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 468603
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]([CH2:19][C:20]([O:22]C)=[O:21])[C:9](=[O:18])/[CH:10]=[CH:11]/[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[CH:4][CH:3]=1.[OH-].[Li+].Cl>C1COCC1.CO.O>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([N:8]([CH2:19][C:20]([OH:22])=[O:21])[C:9](=[O:18])/[CH:10]=[CH:11]/[C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[CH:6][CH:7]=1

Komponenten

7

Edukt 3

HCID 313Hydrochloric AcidHCID 3939Lithium HydroxideHCID 59212030{(4-Bromophenyl)-[(E)-(3-phenylacryloyl)]amino}acetic acid, methyl ester

Produkt 1

HCID 59212055HCID 59212055, VerbindungAusbeute 97 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 887MethanolLösungsmittelHCID 962WaterLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

A solution of {(4-bromophenyl)-[(E)-(3-phenylacryloyl)]amino}acetic acid, methyl ester 1 (14.61 g, 0.39 mol) in THF (150 mL) and methanol (50 mL) was treated with lithium hydroxide (2.80 g, 0.117 mol) in water (50 mL). The reaction mixture was stirred at room temperature for 45 min and then acidified with conc. hydrochloric acid and concentrated in vacuo. The residue was diluted with ethyl acetate and washed with 10% hydrochloric acid, brine, dried (Na2SO4) and the organic solution evaporated to give the title compound as a viscous oil (13.82 g, 97%). 1HNMR (300 MHz) (CDCl3) δ 4.53 (2H, s), 6.36 (1H, d, J=16 Hz), 7.27 (2H, d), 7.3-7.4 (5H, m), 7.60 (2H, d) and 7.76 (1H, d, J=16 Hz).

Aufarbeitung

  1. concentrationconcentrated in vacuo
  2. additionThe residue was diluted with ethyl acetate
  3. washwashed with 10% hydrochloric acid, brine
  4. dry with materialdried (Na2SO4)
  5. customthe organic solution evaporated

Quellen und Nachweise

ORD-Eintrag
ord-3716cd8b750d4c20a1f34902a2ddde67
Quelldatensatz
uspto-grants-2014_01
Patentnummer
US08624022B2

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