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Phosgene → N-(4-isopropylbenzyl)-N'-(3-methyl-5-isoquinolinyl)urea

HRID 887279
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 887279
[CH:1]([C:4]1[CH:11]=[CH:10][C:7]([CH2:8][NH2:9])=[CH:6][CH:5]=1)([CH3:3])[CH3:2].[C:12](Cl)(Cl)=[O:13].CCN(C(C)C)C(C)C.[NH2:25][C:26]1[CH:35]=[CH:34][CH:33]=[C:32]2[C:27]=1[CH:28]=[C:29]([CH3:36])[N:30]=[CH:31]2>C1(C)C=CC=CC=1>[CH:1]([C:4]1[CH:5]=[CH:6][C:7]([CH2:8][NH:9][C:12]([NH:25][C:26]2[CH:35]=[CH:34][CH:33]=[C:32]3[C:27]=2[CH:28]=[C:29]([CH3:36])[N:30]=[CH:31]3)=[O:13])=[CH:10][CH:11]=1)([CH3:3])[CH3:2]
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Komponenten

6

Edukt 4

HCID 6371PhosgeneHCID 81531DiisopropylethylamineHCID 1382214-IsopropylbenzylamineHCID 122120553-Methylisoquinolin-5-amine

Produkt 1

HCID 22032671N-(4-isopropylbenzyl)-N'-(3-methyl-5-isoquinolinyl)urea

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1140
Toluene
Lösungsmittel
2×

Versuchsvorschrift

4-Isopropylbenzylamine (748 mg, 5.02 mmol) in toluene (20 mL) was refluxed with 20% w/v phosgene solution in toluene (3 mL) overnight. The mixture was cooled to room temperature and concentrated in vacuo. The residue was taken up in toluene (20 mL) and was treated with DIEA (4 mL) and 5-amino-3-methylisoquinoline (500 mg, 3.16 mmol). The reaction mixture was stirred was at 80° C. for 6 hours. After cooling to room temperature, a precipitate formed which was collected by filtration and purified by silica gel chromatography (98:2 CH2Cl2:CH3OH) to provide the title compound. The corresponding hydrochloride salt was formed by treatment with methanolic HCl. 1H NMR (300 MHz, DMSO-d6) δ 9.16 (s, 1H), 8.60 (s, 1H), 8.24 (dd, 1H, J=7.5 Hz, 1.0 Hz), 7.74 (s, 1H), 7.68 (d, 1H, J=8.2 Hz), 7.50 (t, 1H, J=8.0 Hz), 7.22-7.30 (m, 4H), 6.99 (t, 1H, 5.6 Hz), 4.32 (d, 2H, J=7.8 Hz), 2.88 (m, 1H), 2.64 (s, 3H), 1.20 (d, 6H, J=6.8 Hz); MS (ESI+) m/z 334 (M+H).

Aufarbeitung

  1. concentrationconcentrated in vacuo
  2. temperatureAfter cooling to room temperature
  3. customa precipitate formed which
  4. filtrationwas collected by filtration
  5. custompurified by silica gel chromatography (98:2 CH2Cl2:CH3OH)

Quellen und Nachweise

ORD-Eintrag
ord-cc0dbb653efd48f99ddc28e91b3b2225
Quelldatensatz
uspto-grants-2012_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08247413B2

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