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Hydrochloric Acid → HCID 86698276, Verbindung

HRID 2408999
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2408999
Cl[C:2]1[C:11]2[C:6](=[CH:7][C:8]([O:14][CH3:15])=[C:9]([O:12][CH3:13])[CH:10]=2)[N:5]=[CH:4][N:3]=1.[C:16]([C:20]1[Se:24][C:23]([C:25]([NH2:27])=[O:26])=[C:22]([OH:28])[CH:21]=1)([CH3:19])([CH3:18])[CH3:17].[OH-].[Na+].Cl>CN(C=O)C.O>[CH3:13][O:12][C:9]1[CH:10]=[C:11]2[C:6](=[CH:7][C:8]=1[O:14][CH3:15])[N:5]=[CH:4][N:3]=[C:2]2[O:28][C:22]1[CH:21]=[C:20]([C:16]([CH3:19])([CH3:17])[CH3:18])[Se:24][C:23]=1[C:25]([NH2:27])=[O:26]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 27693644-Chloro-6,7-dimethoxyquinazolineHCID 86698277HCID 86698277, Verbindung

Produkt 1

HCID 86698276HCID 86698276, VerbindungAusbeute 63,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962
Water
Lösungsmittel
HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a solution of 4-chloro-6,7-dimethoxyquinazoline (200 mg, 0.89 mmol) in DMF (5 mL) was added sequentially 5-tert-butyl-3-hydroxyselenophene-2-carboxamide (220 mg, 0.89 mmol), powdered NaOH (147 mg, 3.568 mmol) and catalytic amount of KI at rt and the mixture was stirred at rt for 3 h. The mixture was poured into ice cooled water, neutralized with dil. HCl and stirred for 15 min. The precipitated solid was filtered, washed with water and dried. The crude product was chromatographed over silica gel column using chloroform-methanol (95:5) as eluents to give the product as an yellow color solid (245 mg, 63%), mp 220-224° C. 1H NMR (400 MHz, CDCl3): δ 15.16 (1H, br s, exchangeable with D2O), 13.63 (1H, br s, exchangeable with D2O), 8.17 (1H, s), 7.51 (1H, s), 7.21 (1H, s), 6.87 (1H, s), 4.05 (6H, s), 1.38 (9H, s); 13C NMR (100 MHz, CDCl3): δ 175.5, 172.0, 164.8, 156.6. 155.1, 150.7, 145.9, 139.9, 118.7, 113.1, 112.7, 108.4, 103.3, 56.5, 56.3, 37.1, 32.2; LC-MS (positive ion mode): m/z 434, 436 (M+H)+.

Aufarbeitung

  1. additionThe mixture was poured into ice
  2. stirringstirred for 15 min
  3. filtrationThe precipitated solid was filtered
  4. washwashed with water
  5. customdried
  6. customThe crude product was chromatographed over silica gel column

Quellen und Nachweise

ORD-Eintrag
ord-076f3eb220e74da6a5e2eb20ea8e800c
Quelldatensatz
uspto-grants-2014_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08815879B2

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