Hydrochloric Acid → HCID 178472438, Verbindung

HRID 1631435Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1631435
[NH2:1][C@H:2]1[CH2:7][CH2:6][C@H:5]([C:8]([O:10][CH2:11][CH3:12])=[O:9])[CH2:4][CH2:3]1.Cl.C([O-])([O-])=O.[K+].[K+].Br[CH2:21][C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1>C(#N)C>[CH2:21]([N:1]([CH2:8][C:5]1[CH:6]=[CH:7][CH:2]=[CH:3][CH:4]=1)[C@H:2]1[CH2:3][CH2:4][C@H:5]([C:8]([O:10][CH2:11][CH3:12])=[O:9])[CH2:6][CH2:7]1)[C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1

Komponenten

6

Edukt 4

HCID 313Hydrochloric AcidHCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 178472434HCID 178472434, Verbindung

Produkt 1

HCID 178472438HCID 178472438, VerbindungAusbeute 91 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
80 °C

Versuchsvorschrift

A stirred suspension of 13A.HCl (5.12 g, 24.65 mmol) in acetonitrile (75 mL) was treated with K2CO3 (13.63 g, 99 mmol) and (bromomethyl)benzene (7.32 mL, 61.6 mmol). The resulting suspension was stirred at 80° C. overnight. Upon cooling, the solid was filtered off and filtrate was concentrated. The residue was purified by Isco silica column (80 g) eluted with ethyl acetate-hexane: 0%-20%. Concentration of the appropriate fractions provided 13B (7.92 g, 91% yield) as a colorless oil. MS (ES): m/z=352.2 [M+H]+. 1H NMR (400 MHz, CDCl3) δ ppm 7.08-7.34 (m, 10H); 4.01 (q, 2H, J=7.1 Hz); 3.55 (s, 4H); 2.40-2.49 (m, 1H); 2.06-2.14 (m, 1H); 1.86-2.00 (m, 2H); 1.24-1.38 (m, 2H); 1.18 (t, 3H, J=7.1 Hz).

Aufarbeitung

  1. temperatureUpon cooling
  2. filtrationthe solid was filtered off
  3. concentrationfiltrate was concentrated
  4. customThe residue was purified by Isco silica column (80 g)
  5. washeluted with ethyl acetate-hexane

Quellen und Nachweise

ORD-Eintrag
ord-28fba15365064698af6abff01dc18eab
Quelldatensatz
uspto-grants-2014_07
Patentnummer
US08791257B2

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