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Benzyl succinimido carbonate → HCID 66746504, Verbindung

HRID 2047751
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2047751
[NH2:1][C:2]1[CH:9]=[CH:8][CH:7]=[C:6]([O:10][CH2:11][C:12]([NH2:15])([CH3:14])[CH3:13])[C:3]=1[C:4]#[N:5].C([O-])(O)=O.[Na+].[C:21](=O)([O:30]N1C(=O)CCC1=O)[O:22][CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1>C1COCC1.O>[NH2:1][C:2]1[C:3]([C:4]#[N:5])=[C:6]([CH:7]=[CH:8][CH:9]=1)[O:10][CH2:11][C:12]([NH:15][C:21](=[O:30])[O:22][CH2:23][C:24]1[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=1)([CH3:13])[CH3:14]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 83172Benzyl succinimido carbonateHCID 516892Sodium BicarbonateHCID 667465182-amino-6-(2-amino-2-methylpropoxy)benzonitrile

Produkt 1

HCID 66746504HCID 66746504, VerbindungAusbeute 89 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 21881883Oxolane--water (1/1)Lösungsmittel

Versuchsvorschrift

To a solution of 2-amino-6-(2-amino-2-methylpropoxy)benzonitrile (Example 24d, 30.5 g, 148.6 mmol) in THF/H2O (1:1, 400 mL) was added NaHCO3 (24.7 g, 294 mmol), followed by benzyl (2,5-dioxopyrrolidin-1-yl) carbonate (44.0 g, 176 mmol) at room temperature. The reaction was stirred at room temperature for 4 h then the organic layer was separated and the aqueous layer was extracted with EtOAc (2×). The combined organic layers were washed with brine and dried over MgSO4. After filtration, the solvent was evaporated and the crude oil was purified by chromatography on silica gel (eluent: 0-60% EtOAc in hexane) to give the title compound as yellow oil (44.8 g, 89%). 1H NMR (400 MHz, DMSO-d6) δ 1.30 (s, 6H), 4.02 (s, 2H), 4.96 (s, 2H), 5.98 (s, 2H), 6.14 (d, J=8.0 Hz, 1H), 6.32 (dd, J=0.8, 8.4 Hz, 1H), 7.12 (t, J=8.4 Hz, 1H), 7.38-7.21 (m, 6H). MS 340 (MH+).

Aufarbeitung

  1. customthe organic layer was separated
  2. extractionthe aqueous layer was extracted with EtOAc (2×)
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over MgSO4
  5. filtrationAfter filtration
  6. customthe solvent was evaporated
  7. customthe crude oil was purified by chromatography on silica gel (eluent: 0-60% EtOAc in hexane)

Quellen und Nachweise

ORD-Eintrag
ord-00159b6c4b254a3c9c6252b64352d20a
Quelldatensatz
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08592592B2

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