1,4-Dioxane → 7-Bromo-3-(4-bromo-2-fluorobenzyl)-1,2,3,4-tetrahydro-2,4-dioxoquinazoline

HRID 1639301

Reaktionsgleichung

Reaktionsgleichung von HRID 1639301
[NH2:1][C:2]1[CH:19]=[C:18]([Br:20])[CH:17]=[CH:16][C:3]=1[C:4]([NH:6][CH2:7][C:8]1[CH:13]=[CH:12][C:11]([Br:14])=[CH:10][C:9]=1[F:15])=[O:5].[O:21]1CCOC[CH2:22]1>>[Br:20][C:18]1[CH:19]=[C:2]2[C:3]([C:4](=[O:5])[N:6]([CH2:7][C:8]3[CH:13]=[CH:12][C:11]([Br:14])=[CH:10][C:9]=3[F:15])[C:22](=[O:21])[NH:1]2)=[CH:16][CH:17]=1

Komponenten

3

Edukt 2

HCID 312751,4-DioxaneHCID 144589952-amino-4-bromo-N-(4-bromo-2-fluorobenzyl)benzamide

Produkt 1

HCID 144590037-Bromo-3-(4-bromo-2-fluorobenzyl)-1,2,3,4-tetrahydro-2,4-dioxoquinazoline

Reaktionsbedingungen

Temperatur
150 °C

Versuchsvorschrift

2-Amino-4-bromo-N-(4-bromo-2-fluorobenzyl)benzamide (2.90 g) and N,N'-carbonyldiimidazole (4.68 g) were dissolved in dioxane (50 ml). The solution was evaporated to give a residue, which was stirred at 150° C. for 30 minutes. After cooling, the precipitates were collected by filtration and washed with ethanol to give 7-bromo-3-(4-bromo-2-fluorobenzyl)-1,2,3,4-tetrahydro-2,4-dioxoquinazoline (2.92 g).

Aufarbeitung

  1. customThe solution was evaporated
  2. customto give a residue, which
  3. temperatureAfter cooling
  4. filtrationthe precipitates were collected by filtration
  5. washwashed with ethanol

Quellen und Nachweise

ORD-Eintrag
ord-0b07f24302ab4db4b08d6a6ad0522555
Quelldatensatz
uspto-grants-1989_11
Patentnummer
US04883800

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