Reaktion #49395

Reaktionsgleichung

4-Chloro-3-hydroxy-7-formyl-2-(1-methyl-1-phenylethyl)isoindolinone

o-phenylenediamine

hexane

→

4-chloro-3-hydroxy-7-(1H-benzoimidazol-2-yl)-2-(1-methyl-1-phenylethyl)isoindolinone

Ausbeute 34.0%

Lösungsmittel

nitrobenzene

Reaktionsbedingungen

Aufarbeitung

1. 1
   Filtrationthe obtained solid was collected by filtration
2. 2
   Sonstigepurified by preparative thin-layer chromatography (hexane/ethyl acetate=2/1, 1/1)

Vorschrift

4-Chloro-3-hydroxy-7-formyl-2-(1-methyl-1-phenylethyl)isoindolinone (100 mg, 0.303 mmol) was dissolved in nitrobenzene (2 mL), and the solution was added with o-phenylenediamine (49 mg, 0.45 mmol), followed by stirring at 130° C. for 5.2 hours. The reaction mixture was added with hexane and the obtained solid was collected by filtration and purified by preparative thin-layer chromatography (hexane/ethyl acetate=2/1, 1/1) to obtain 4-chloro-3-hydroxy-7-(1H-benzoimidazol-2-yl)-2-(1-methyl-1-phenylethyl)isoindolinone (42.8 mg, yield 34%).

Quelle