Sodium Hydroxide → 1-Oxo-7-(propan-2-yloxy)-1,2,3,4-tetrahydroisoquinoline-5-carboxylic acid

HRID 577516Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 577516
[O:1]=[C:2]1[C:11]2[CH:10]=[C:9]([O:12][CH:13]([CH3:15])[CH3:14])[CH:8]=[C:7]([C:16]([O:18]C)=[O:17])[C:6]=2[CH2:5][CH2:4][NH:3]1.[OH-].[Na+]>CO>[O:1]=[C:2]1[C:11]2[CH:10]=[C:9]([O:12][CH:13]([CH3:14])[CH3:15])[CH:8]=[C:7]([C:16]([OH:18])=[O:17])[C:6]=2[CH2:5][CH2:4][NH:3]1

Komponenten

4

Edukt 2

HCID 14798Sodium HydroxideHCID 86723679Methyl 1-oxo-7-(propan-2-yloxy)-1,2,3,4-tetrahydroisoquinoline-5-carboxylate

Produkt 1

HCID 867237431-Oxo-7-(propan-2-yloxy)-1,2,3,4-tetrahydroisoquinoline-5-carboxylic acidAusbeute 97 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

To a solution of methyl 1-oxo-7-(propan-2-yloxy)-1,2,3,4-tetrahydroisoquinoline-5-carboxylate (Cpd E, 1.00 g, 3.80 mmol) in MeOH (20 mL) was added NaOH (3.00 mL, 12.0 mmol). The resulting reaction mixture was stirred at 50° C. for 3 hours. Volatiles were removed under vacuum and the resulting residue was dissolved in MeOH (30 mL), and neutralized with 1 M HCl to pH=2˜3. Precipitates were formed, collected by filtration, washed with water, and dried in an oven at 60° C. under vacuum to give 1-oxo-7-(propan-2-yloxy)-1,2,3,4-tetrahydroisoquinoline-5-carboxylic acid (77a, 918 mg, 97%) as a white solid.

Aufarbeitung

  1. customThe resulting reaction mixture
  2. customVolatiles were removed under vacuum
  3. dissolutionthe resulting residue was dissolved in MeOH (30 mL)
  4. customPrecipitates
  5. customwere formed
  6. filtrationcollected by filtration
  7. washwashed with water
  8. customdried in an oven at 60° C. under vacuum

Quellen und Nachweise

ORD-Eintrag
ord-4ddb1c64adc74c308be39df4cad0f8da
Quelldatensatz
uspto-grants-2015_05
Patentnummer
US09040515B2

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